In Reversal, Florida to Take Health Law’s Medicaid Expansion

MIAMI — Gov. Rick Scott of Florida reversed himself on Wednesday and announced that he would expand his state’s Medicaid program to cover the poor, becoming the latest — and, perhaps, most prominent — Republican critic of President Obama’s health care law to decide to put it into effect.

It was an about-face for Mr. Scott, a former businessman who entered politics as a critic of Mr. Obama’s health care proposals. Florida was one of the states that sued to try to block the law. After the Supreme Court ruled last year that though the law was constitutional, states could choose not to expand their Medicaid programs to cover the poor, Mr. Scott said that Florida would not expand its programs.

Mr. Scott said Wednesday that he now supported a three-year expansion of Medicaid, through the period that the federal government has agreed to pay the full cost of the expansion, and before some of the costs are shifted to the states.

“While the federal government is committed to paying 100 percent of the cost, I cannot in good conscience deny Floridians that needed access to health care,” Mr. Scott said at a news conference. “We will support a three-year expansion of the Medicaid program under the new health care law as long as the federal government meets their commitment to pay 100 percent of the cost during that time.”

He said there were “no perfect options” when it came to the Medicaid expansion. “To be clear: our options are either having Floridians pay to fund this program in other states while denying health care to our citizens,” he said, “or using federal funding to help some of the poorest in our state with the Medicaid program as we explore other health care reforms.”

Mr. Scott said the state would not create its own insurance exchange to comply with another provision of the law.

His reversal sent ripples through the nation, especially given the change in tone and substance since the summer, when he said he would not create an exchange or expand Medicaid.

“Floridians are interested in jobs and economic growth, a quality education for their children, and keeping the cost of living low,” Mr. Scott said in a statement at the time. “Neither of these major provisions in Obamacare will achieve those goals, and since Florida is legally allowed to opt out, that’s the right decision for our citizens.”

Mr. Scott now joins the Republican governors of Arizona, Michigan, Nevada, New Mexico, North Dakota and Ohio, who have decided to join the Medicaid expansion. Some, like Gov. Jan Brewer of Arizona, were also staunch opponents of Mr. Obama’s overall health care law.

Shortly before his announcement, the governor received word from the federal government that it planned to grant Florida the final waiver needed to privatize Medicaid, a process the state initially undertook as a pilot project. Mr. Scott, who is running for re-election next year, has heavily lobbied for the waiver, arguing that Florida could not expand Medicaid without it.

Mr. Scott’s support of Medicaid expansion is significant, but is far from the last word. The program requires approval from Florida’s Republican-dominated Legislature, which has been averse to expanding Medicaid under the health care law. The Legislature’s two top Republican leaders said that before making a decision they would consider recommendations from a select committee, which has been asked to review the state’s options.

“The Florida Legislature will make the ultimate decision,” Will Weatherford, the state House speaker, said. “I am personally skeptical that this inflexible law will improve the quality of health care in our state and ensure our long-term financial stability.”

Medicaid, which covers three million people in Florida, costs the state $21 billion a year. The expansion would extend coverage to one million more people.

Mr. Scott’s reversal is sure to anger his original conservative supporters.

The governor “was elected because of his principled conservative leadership against Obamacare’s overreach,” said Slade O’Brien, state director for Americans for Prosperity, an influential conservative advocacy organization. “Hopefully our legislative leaders will not follow in Governor Scott’s footsteps, and will reject expansion.”

During his announcement on Wednesday, Mr. Scott said his mother’s recent death and her lifetime struggle to raise five children “with very little money” played a role in his decision.

“Losing someone so close to you puts everything in a new perspective, especially the big decisions,” he said.

Michael Cooper contributed reporting from New York.

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Boeing Engineers Approve Pact, but Tech Workers Say No

SEATTLE (AP) — It's a split decision from the union representing Boeing Co.'s engineers and technical workers.

The engineers voted Tuesday to accept the aerospace company's four-year contract offer while technical workers rejected it and authorized a future strike.

Bill Dugovich of the Society of Professional Engineering Employees in Aerospace says the votes mean the new contract for the 15,550 engineers is in place.

He says negotiators hope to resume contract talks soon on behalf of the 7,400 technical workers.

A strike by the technical workers is not imminent, but Dugovich says the negotiating team is now authorized to call one. Engineers and technical workers work on plans for planes and solve problems that arise on the factory floor.

Boeing did not comment.

SPEEA last went on strike for 40 days in 2000.

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India Ink: A Personal Nightmare of Assault in India

In a hotel in southern India, in the midst of a dreamless sleep, I awoke inside a nightmare. I heard someone screaming. I’m not sure how much time passed before I realized that it was my scream.

I had traveled to India on behalf of a U.S.-based organization to film a documentary about political street theatre and how art is used as a tool for social change. It was the continuation of field research that I had begun as a William J. Fulbright Scholar. As a second-generation American born to parents who emigrated from India, I felt a sense of pride that I could use my role as a filmmaker to serve as a cultural ambassador between the two largest democracies in the world.

But I found myself awake in this nightmare, with a man violently gripping my mouth shut, attempting to rape me. I was biting and kicking, using every ounce of my energy to fight for my life. My mouth was badly bleeding and in the struggle we fell to the floor. He continued to violently grab my face, and said, “Shalini, don’t shout.” He knew my name. I recognized him as the hotel waiter who served my dinner that night.

I continued to scream and fight incessantly, until finally he relented. He picked up his lungi and said, “I’ll leave. Don’t tell the manager.” Then he ran out and shut the door. Did he really think he could try and rape me in my sleep, without protest and that I wouldn’t tell? Yes. He did. He counted on the fact that he lived in a culture that blamed the victim — that the stigma associated with sexual assault would force a woman to keep quiet. And although I had escaped the worst-case scenario, and prevented a rape, the nightmare was far from over.

In the days that followed, bruised and battered, with excruciating body pain, I managed to shuttle to and from government hospitals to be examined and police stations to file reports. I was well acquainted with India’s bureaucratic process, and in spite of my injuries, I wanted to make sure I had filled out all the paperwork correctly to obtain “justice.”

For several weeks, I tried to get a response from several American and Indian bureaucracies, but they all responded the same way: by doing nothing. Despite my formal complaints, in which I detailed the attack in full, these institutions offered no assistance – not even a single follow up call. I was devastated. I traveled to India on part of an American organization, and received no mental, physical or emotional support. As someone who has committed my life to artistic expression and social justice, I have never felt so voiceless.

Rape and sexual assault are not isolated incidents in a woman’s life. The physical wounds can heal, but the psychological and social stigma associated with rape can keep a woman from reaching her highest potential. My mother had always raised me with the idea that I could lift myself up from my bootstraps and follow my dreams. But in the years following the sexual assault, I suffered the worst depression that I had ever known. I finally sought out a free clinic for survivors. The counselor explained to me, “You have something called post-­‐traumatic stress disorder (PTSD). You have the stuff soldiers have coming home from a war.” Had I not found someone who could diagnose me with PTSD, and tell me this was a real and treatable condition, this assault may have held me back for life.

The recent gang rapes in India are a reminder to all of us that the rapists are not the only persons who are guilty. The onlookers, the institutions that turn a blind eye, and fail to implement comprehensive policies to address sexual assault are complicit in the violence. When these crimes are swept under the carpet, it perpetuates a culture of silence, a culture that blames the victim.

In the mainstream coverage of the recent gang rape in India, there is a kind of colonial mentality to view these men as savages, and to see India as a place that oppresses women. But looking at figures in the U.S., every two minutes a woman is sexually assaulted. One in four American women suffer rape or attempted rape by the time they reach college.

When I first started to share my story, I was astounded by just how many women began sharing their stories with me. It was like a common secret that we were all hiding. And I grieved not just for my own loss of innocence, but also for just how ordinary my story is, for the invisible war that is happening against women everyday. Sexual violence against women is ubiquitous. It happens to women everywhere, however educated, however empowered, across boundaries of race, class, and nationality.

We can longer wait for the death of another woman to break the silence of so many victims of sexual violence. U.S. and Indian institutions must move quickly to implement comprehensive policies regarding education, training, and support as well as clearly defined medical and legal protocol to deal with women who are sexually assaulted at home and abroad.

Healing from this traumatic event has been a journey towards deep compassion for myself, for my attacker, and for the people and institutions that betrayed me in my time of need. This story is for the courageous women who have been betrayed by the institutions they loved and served. This story is for the 40,000 women in India who are still waiting for justice for sexual assault. My case is among them. And in the silence, I can hear their scream.

Shalini Kantayya is the director of 7th Empire Media and a 2000 Fulbright Scholar.

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Bits Blog: Tech Predictions for 2013: It's All About Mobile

If there is one theme that will be the topic of digital business this year, it is mobile.

ComScore, which tracks Web and mobile usage, published a report about what happened in 2012, and what to expect in 2013.

It shows that the effects of a movement toward mobile are everywhere, from shopping to media to search. According to the report, “2013 could spell a very rocky economic transition,” and businesses will have to scramble to stay ahead of consumers’ changing behavior.

Here are a few interesting tidbits from the 48-page report.

The mobile transition is happening astonishingly quickly. Last year, smartphone penetration crossed 50 percent for the first time, led by Android phones. People spend 63 percent of their time online on desktop computers and 37 percent on mobile devices, including smartphones and tablets, according to comScore.

Just as they compete on computers, Facebook and Google are dominant and at each other’s throats on phones.

Google’s map app for the iPhone, which had been the most used mobile app, lost its No. 1 spot to Facebook after Apple kicked Google’s maps off the iPhone in October. Now, Facebook reaches 76 percent of the smartphone market and accounts for 23 percent of total time spent using apps each month. The next five most used apps are Google’s, which account for 10 percent of time on apps.

As mobile continues to take share from desktop, some industries have been particularly affected, and they are seeing significant declines in desktop use of their products as a result. They are newspapers, search engines, maps, weather, comparison shopping, directories and instant messenger services.

The most visited Web sites are not so surprising: Google, Yahoo, Microsoft, Facebook and Amazon. Facebook continues to take up most of our time online.

But there were a few surprises from younger, smaller Web companies. Tumblr was No. 8 on the list of sites, ordered by time spent on them. And several Web sites were breakout hits last year, as measured by growth and visitor numbers: Spotify (music), Dropbox (online storage), Etsy (shopping), BuzzFeed (news), JustFab (shopping), SoundCloud (music) and BusinessInsider (news).

Search, one of the biggest and most reliable Web industries, is at a crossroads, comScore said. Even though the search market continues to be extraordinarily profitable, there is a desire for it to evolve and offer new services to users.

Here is some evidence: Searches on traditional search engines, dominated by Google, declined 3 percent last year, and the number of searches per searcher declined 7 percent. Yet searches on specialty sites, known as vertical search engines, like Amazon.com or Whitepages.com, climbed 8 percent.

Social search, based on what users’ friends like, has put Facebook and Google on a “collision course,” comScore said, particularly in searches for local businesses like restaurants.

In social networking, the visual Web, as comScore calls it, has transformed the landscape. Pinterest, Tumblr and Instagram, all of which emphasize images, each gained more than 10 million visitors last year.

Last year was also pivotal for online video, comScore said, as viewers increasingly seek the ability to watch video when and where they want. Watching TV shows online helped last year break viewing records, especially during the Olympics.

In the United States, 75 million people a day watch online video and stream 40 billion videos a month, and viewing is driven by YouTube.

There has also been a turning point for video ads. They cost more than typical ads, and have always lagged behind viewership. But in 2012, 23 percent of videos were accompanied by an ad, up from 14 percent the year before. More TV ad dollars are coming to online video, comScore concluded.

Though e-commerce spending grew 13 percent last year, it was a disappointing holiday season online, largely because of economic pressures. Purchasing on mobile phones is beginning to make a dent in e-commerce, comScore said, with mobile shopping accounting for 11 percent of e-commerce in the fourth quarter of 2012, up from 3 percent in the period two years earlier.

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Well: No Consensus on Plantar Fasciitis

Phys Ed

Gretchen Reynolds on the science of fitness.

There are more charismatic-sounding sports injuries than plantar fasciitis, like tennis elbow, runner’s knee and turf toe. But there aren’t many that are more common. The condition, characterized by stabbing pain in the heel or arch, sidelines up to 10 percent of all runners, as well as countless soccer, baseball, football and basketball players, golfers, walkers and others from both the recreational and professional ranks. The Lakers star Kobe Bryant, the quarterback Eli Manning, the Olympic marathon runner Ryan Hall and the presidential candidate Mitt Romney all have been stricken.

But while plantar fasciitis is democratic in its epidemiology, its underlying cause remains surprisingly enigmatic. In fact, the mysteries of plantar fasciitis underscore how little is understood, medically, about overuse sports injuries in general and why, as a result, they remain so insidiously difficult to treat.

Experts do agree that plantar fasciitis is, essentially, an irritation of the plantar fascia, a long, skinny rope of tissue that runs along the bottom of the foot, attaching the heel bone to the toes and forming your foot’s arch. When that tissue becomes irritated, you develop pain deep within the heel. The pain is usually most pronounced first thing in the morning, since the fascia tightens while you sleep.

But scientific agreement about the condition and its causes ends about there.

For many years, “most of us who treat plantar fasciitis believed that it involved chronic inflammation” of the fascia, said Dr. Terrence M. Philbin, a board-certified orthopedic surgeon at the Orthopedic Foot and Ankle Center in Westerville, Ohio, who specializes in plantar fasciitis.

It was thought that by running or otherwise repetitively pounding their heels against the ground, people strained the plantar fascia, and the body responded with a complex cascade of inflammatory biochemical processes that resulted in extra blood and fluids flowing to the injury site, as well as enhanced pain sensitivity.

But instead of lasting only a few days and then fading, as acute inflammation usually does, the process can become chronic and create its own problems, causing tissue damage and continuing pain.

This progression is also what experts believed was happening when people developed chronic Achilles tendon pain, tennis elbow or other lingering, overuse injuries.

But when scientists actually biopsied fascia tissue from people with chronic plantar fasciitis, “they did not find much if any inflammation,” Dr. Philbin said. There were virtually none of the cellular markers that characterize that condition.

“Plantar fasciitis does not involve inflammatory cells,” said Dr. Karim Khan, a professor of family practice medicine at the University of British Columbia and editor of The British Journal of Sports Medicine, who has written extensively about overuse sports injuries.

Instead, plantar fasciitis more likely is caused by degeneration or weakening of the tissue. This process probably begins with small tears that occur during activity and that, in normal circumstances, the body simply repairs, strengthening the tissue as it does. That is the point of exercise training.

But sometimes, for unknown reasons, this ongoing tissue damage overwhelms the body’s capacity to respond. The small tears don’t heal. They accumulate. The tissue begins subtly to degenerate, even to shred. It hurts.

By and large, most sports medicine experts now believe that this is how we develop other overuse injuries, like tennis elbow or Achilles tendinopathy, which used to be called tendinitis. The suffix “itis” means inflammation. But since the injury isn’t thought to involve chronic inflammation, its name has changed.

This has not yet happened with plantar fasciitis, and may not, given what a mouthful fasciopathy would be.

The evolving medical opinions about plantar fasciitis matter, beyond nomenclature, though, because treatments depend on causes. At the moment, many physicians rely on injections of cortisone, a steroid that is both a pain reliever and anti-inflammatory, to treat plantar fasciitis. And cortisone shots do reduce the soreness. In a study published last year in BMJ, patients who received cortisone injections reported less heel pain after four months than those whose shots had contained a placebo saline solution.

But whether those benefits will last is unknown, especially if plantar fasciitis is, indeed, degenerative. In studies with people suffering from tennis elbow, another injury that is now considered degenerative, cortisone shots actually slowed tissue healing.

We need similar studies in people with plantar fasciitis, Dr. Khan said. “They have not been done.”

Thankfully, most people who develop plantar fasciitis will recover within a few months without injections or other invasive treatments, Dr. Philbin said, if they simply back off their running mileage somewhat or otherwise rest the foot and stretch the affected tissues. Stretching the plantar fascia, as well as the Achilles tendon, which also attaches to the heel bone, and the hamstring muscles seems to result in less strain on the fascia during activity, meaning less ongoing trauma and, eventually, time for the body to catch up with repairs.

To ensure that you are stretching correctly, Dr. Philbin suggests consulting a physical therapist, after, of course, visiting a sports medicine doctor for a diagnosis. Not all heel or arch pain is plantar fasciitis. And comfort yourself if you do have the condition with the knowledge that Kobe Bryant, Eli Manning and Ryan Hall have all returned to competition and Mr. Romney still runs.

Read More..

Well: No Consensus on Plantar Fasciitis

Phys Ed

Gretchen Reynolds on the science of fitness.

There are more charismatic-sounding sports injuries than plantar fasciitis, like tennis elbow, runner’s knee and turf toe. But there aren’t many that are more common. The condition, characterized by stabbing pain in the heel or arch, sidelines up to 10 percent of all runners, as well as countless soccer, baseball, football and basketball players, golfers, walkers and others from both the recreational and professional ranks. The Lakers star Kobe Bryant, the quarterback Eli Manning, the Olympic marathon runner Ryan Hall and the presidential candidate Mitt Romney all have been stricken.

But while plantar fasciitis is democratic in its epidemiology, its underlying cause remains surprisingly enigmatic. In fact, the mysteries of plantar fasciitis underscore how little is understood, medically, about overuse sports injuries in general and why, as a result, they remain so insidiously difficult to treat.

Experts do agree that plantar fasciitis is, essentially, an irritation of the plantar fascia, a long, skinny rope of tissue that runs along the bottom of the foot, attaching the heel bone to the toes and forming your foot’s arch. When that tissue becomes irritated, you develop pain deep within the heel. The pain is usually most pronounced first thing in the morning, since the fascia tightens while you sleep.

But scientific agreement about the condition and its causes ends about there.

For many years, “most of us who treat plantar fasciitis believed that it involved chronic inflammation” of the fascia, said Dr. Terrence M. Philbin, a board-certified orthopedic surgeon at the Orthopedic Foot and Ankle Center in Westerville, Ohio, who specializes in plantar fasciitis.

It was thought that by running or otherwise repetitively pounding their heels against the ground, people strained the plantar fascia, and the body responded with a complex cascade of inflammatory biochemical processes that resulted in extra blood and fluids flowing to the injury site, as well as enhanced pain sensitivity.

But instead of lasting only a few days and then fading, as acute inflammation usually does, the process can become chronic and create its own problems, causing tissue damage and continuing pain.

This progression is also what experts believed was happening when people developed chronic Achilles tendon pain, tennis elbow or other lingering, overuse injuries.

But when scientists actually biopsied fascia tissue from people with chronic plantar fasciitis, “they did not find much if any inflammation,” Dr. Philbin said. There were virtually none of the cellular markers that characterize that condition.

“Plantar fasciitis does not involve inflammatory cells,” said Dr. Karim Khan, a professor of family practice medicine at the University of British Columbia and editor of The British Journal of Sports Medicine, who has written extensively about overuse sports injuries.

Instead, plantar fasciitis more likely is caused by degeneration or weakening of the tissue. This process probably begins with small tears that occur during activity and that, in normal circumstances, the body simply repairs, strengthening the tissue as it does. That is the point of exercise training.

But sometimes, for unknown reasons, this ongoing tissue damage overwhelms the body’s capacity to respond. The small tears don’t heal. They accumulate. The tissue begins subtly to degenerate, even to shred. It hurts.

By and large, most sports medicine experts now believe that this is how we develop other overuse injuries, like tennis elbow or Achilles tendinopathy, which used to be called tendinitis. The suffix “itis” means inflammation. But since the injury isn’t thought to involve chronic inflammation, its name has changed.

This has not yet happened with plantar fasciitis, and may not, given what a mouthful fasciopathy would be.

The evolving medical opinions about plantar fasciitis matter, beyond nomenclature, though, because treatments depend on causes. At the moment, many physicians rely on injections of cortisone, a steroid that is both a pain reliever and anti-inflammatory, to treat plantar fasciitis. And cortisone shots do reduce the soreness. In a study published last year in BMJ, patients who received cortisone injections reported less heel pain after four months than those whose shots had contained a placebo saline solution.

But whether those benefits will last is unknown, especially if plantar fasciitis is, indeed, degenerative. In studies with people suffering from tennis elbow, another injury that is now considered degenerative, cortisone shots actually slowed tissue healing.

We need similar studies in people with plantar fasciitis, Dr. Khan said. “They have not been done.”

Thankfully, most people who develop plantar fasciitis will recover within a few months without injections or other invasive treatments, Dr. Philbin said, if they simply back off their running mileage somewhat or otherwise rest the foot and stretch the affected tissues. Stretching the plantar fascia, as well as the Achilles tendon, which also attaches to the heel bone, and the hamstring muscles seems to result in less strain on the fascia during activity, meaning less ongoing trauma and, eventually, time for the body to catch up with repairs.

To ensure that you are stretching correctly, Dr. Philbin suggests consulting a physical therapist, after, of course, visiting a sports medicine doctor for a diagnosis. Not all heel or arch pain is plantar fasciitis. And comfort yourself if you do have the condition with the knowledge that Kobe Bryant, Eli Manning and Ryan Hall have all returned to competition and Mr. Romney still runs.

Read More..

Japan Finds Swelling in Second Boeing 787 Battery

TOKYO (Reuters) - Cells in a second lithium-ion battery on a Boeing Co 787 Dreamliner forced to make an emergency landing in Japan last month showed slight swelling, a Japan Transport Safety Board (JTSB) official said on Tuesday.

The jet, flown by All Nippon Airways Co, was forced to make the landing after its main battery failed.

"I do not know the exact discussion taken by the research group on the ground, but I heard that it is a slight swelling (in the auxiliary power unit battery cells). I have so far not heard that there was internal damage," Masahiro Kudo, a senior accident investigator at the JTSB said in a briefing in Tokyo.

Kudo said that two out of eight cells in the second battery unit showed some bumps and the JTSB would continue to investigate to determine whether this was irregular or not.

The plane's auxiliary power unit (APU) powers the aircraft's systems when it is on the ground. National Transportation Safety Board investigators in the United States are probing the APU from a Japan Airlines plane that caught fire at Boston's Logan airport when the plane was parked.

The U.S. Federal Aviation Authority grounded all 50 Boeing Dreamliners in commercial service on January 16 after the incidents with the two Japanese owned 787 jets.

The groundings have cost airlines tens of millions of dollars, with no solution yet in sight.

Boeing rival Airbus said last week it had abandoned plans to use lithium-ion batteries in its next passenger jet, the A350, in favor of traditional nickel-cadmium batteries.

Lighter and more powerful than conventional batteries, lithium-ion power packs have been in consumer products such as phones and laptops for years but are relatively new in industrial applications, including back-up batteries for electrical systems in jets.

(Reporting by Mari Saito; Editing by Richard Pullin)

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India Ink: Kalyan Anand, the Sadhu From Madhya Pradesh

Why do millions of Indians, sometimes entire villages, brave the crowds to attend the Kumbh Mela? India Ink interviewed some of the estimated 100 million pilgrims who traveled to this year’s Kumbh Mela at Allahabad, Uttar Pradesh, a 55-day pilgrimage during which Hindus take a holy dip in the Ganges River to wash away their sins.

Kalyan Anand, 46, a sadhu from Chitrakoot town of Madhya Pradesh was one among them. This is what he had to say.

Why did you come to the Kumbh Mela this year? Is this your first time?

I have been coming to the Kumbh for 20 years now. I have gone everywhere there is a Kumbh – Ujjain, Nashik, Haridwar and Allahabad. The purity of River Ganges never ceases to fascinate me. I come to each Kumbh to try and make myself as pure as Mother Ganges.

How have you found it so far?

This one is particularly crowded. They have significantly restricted the bathing area for the sadhus to accommodate the common folk. That is a disappointment. But otherwise, the energy in a Kumbh is always infectious.

Describe your journey to the Kumbh. Did you travel alone? How long did it take?

I travel with my ashram wherever I go.

What does religion mean to you? Do you consider yourself a religious person?

Internal cleansing – that is the basis of religion. Our ancestors strived for it. We should all too. It becomes our inherent responsibility. When everyone on this earth is conscious of his sins, imagine how pure the world will become? Just the mere knowledge will ensure you don’t err in the future.

Who do you think is going to win the 2014 election? Have you ever cast a vote?

We are people who are beyond these things. I haven’t cast a vote all my life.

(The interview was translated from Hindi.)

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China’s Army Is Seen as Tied to Hacking Against U.S.

This 12-story building on the outskirts of Shanghai is the headquarters of Unit 61398 of the People’s Liberation Army. China’s defense ministry has denied that it is responsible for initiating digital attacks.

On the outskirts of Shanghai, in a run-down neighborhood dominated by a 12-story white office tower, sits a People’s Liberation Army base for China’s growing corps of cyberwarriors.

The building off Datong Road, surrounded by restaurants, massage parlors and a wine importer, is the headquarters of P.L.A. Unit 61398. A growing body of digital forensic evidence — confirmed by American intelligence officials who say they have tapped into the activity of the army unit for years — leaves little doubt that an overwhelming percentage of the attacks on American corporations, organizations and government agencies originate in and around the white tower.

An unusually detailed 60-page study, to be released Tuesday by Mandiant, an American computer security firm, tracks for the first time individual members of the most sophisticated of the Chinese hacking groups — known to many of its victims in the United States as “Comment Crew” or “Shanghai Group” — to the doorstep of the military unit’s headquarters. The firm was not able to place the hackers inside the 12-story building, but makes a case there is no other plausible explanation for why so many attacks come out of one comparatively small area.

“Either they are coming from inside Unit 61398,” said Kevin Mandia, the founder and chief executive of Mandiant, in an interview last week, “or the people who run the most-controlled, most-monitored Internet networks in the world are clueless about thousands of people generating attacks from this one neighborhood.”

Other security firms that have tracked “Comment Crew” say they also believe the group is state-sponsored, and a recent classified National Intelligence Estimate, issued as a consensus document for all 16 of the United States intelligence agencies, makes a strong case that many of these hacking groups are either run by army officers or are contractors working for commands like Unit 61398, according to officials with knowledge of its classified content.

Mandiant provided an advance copy of its report to The New York Times, saying it hoped to “bring visibility to the issues addressed in the report.” Times reporters then tested the conclusions with other experts, both inside and outside government, who have examined links between the hacking groups and the army (Mandiant was hired by The New York Times Company to investigate a sophisticated Chinese-origin attack on its news operations, but concluded it was not the work of Comment Crew, but another Chinese group. The firm is not currently working for the Times Company but it is in discussions about a business relationship.)

While Comment Crew has drained terabytes of data from companies like Coca-Cola, increasingly its focus is on companies involved in the critical infrastructure of the United States — its electrical power grid, gas lines and waterworks. According to the security researchers, one target was a company with remote access to more than 60 percent of oil and gas pipelines in North America. The unit was also among those that attacked the computer security firm RSA, whose computer codes protect confidential corporate and government databases.

Contacted Monday, officials at the Chinese embassy in Washington again insisted that their government does not engage in computer hacking, and that such activity is illegal. They describe China itself as a victim of computer hacking, and point out, accurately, that there are many hacking groups inside the United States. But in recent years the Chinese attacks have grown significantly, security researchers say. Mandiant has detected more than 140 Comment Crew intrusions since 2006. American intelligence agencies and private security firms that track many of the 20 or so other Chinese groups every day say those groups appear to be contractors with links to the unit.

While the unit’s existence and operations are considered a Chinese state secret, Representative Mike Rogers of Michigan, the Republican chairman of the House Intelligence Committee, said in an interview that the Mandiant report was “completely consistent with the type of activity the Intelligence Committee has been seeing for some time.”

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National Briefing | South: Abortion Curbs Clear Senate in Arkansas

The State Senate voted 25 to 7 on Monday to ban most abortions 20 weeks into a pregnancy. The measure goes back to the House to consider an amendment that added exceptions for rape and incest. The legislation is based on the belief that fetuses can feel pain 20 weeks into a pregnancy, and is similar to bans in several other states. Opponents say it would require mothers to deliver babies with fatal conditions. Gov. Mike Beebe has said he has constitutional concerns about the proposal but has not said whether he will veto it.

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