Daniel Zwerdling

This story is the second in a two-part report on conditions at mobile home parks in the U.S. Read part one here.

This story is the first in a two-part report on conditions at mobile home parks in the U.S. Today's piece focuses on what happens when corporate park owners fail to take care of their communities. The second story looks at what happens when residents are able to take ownership over their community. Read part two here.

An Army review concludes that commanders did nothing wrong when they kicked out more than 22,000 soldiers for misconduct after they came back from Iraq or Afghanistan – even though all of those troops had been diagnosed with mental health problems or brain injuries.

The Army's report, ordered by Secretary Eric Fanning, seeks to reassure members of Congress that it's treating wounded soldiers fairly. But senators and military specialists say the report troubles them.

Four U.S. senators are calling on the Army to stop kicking out soldiers who served in Iraq or Afghanistan and have been diagnosed with mental health problems or traumatic brain injuries — effective immediately.

It's not just football players or troops who fought in the wars who suffer from brain injuries. Researchers estimate that hundreds of thousands of ordinary people in the U.S. get potentially serious brain injuries every year, too. Yet they and even their doctors often don't know it.

One such doctor is Bryan Arling, an internist in Washington, D.C. His peers often vote to put him on those lists of "top doctors," published by glossy magazines.

The acting secretary of the Army, Eric Fanning, promises to conduct a "thorough, multidisciplinary review" to determine whether thousands of combat soldiers with mental health problems or traumatic brain injuries have been unfairly kicked out of the Army for misconduct.

Staff Sgt. Eric James, an Army sniper who served two tours in Iraq, paused before he walked into a psychiatrist's office at Fort Carson, Colo. It was April 3, 2014. James clicked record on his smartphone, and then tucked the phone and his car keys inside his cap as he walked through the door to the chair by the therapist's desk.

Just about everybody who has studied the hospital industry agrees that it needs to confront the epidemic that plagues many of its staff: Tens of thousands of nursing employees suffer debilitating injuries every year, mainly from doing part of their everyday jobs — moving and lifting patients. The problem is, nobody agrees how to get hospitals to take aggressive action.

As NPR has been reporting in its Injured Nurses series, nursing employees suffer more back and arm injuries than just about any other occupations.

Bernard Valencia's room in the Jerry L. Pettis Memorial Medical Center in Loma Linda, Calif., illustrates how hospitals across the country could fight a nationwide epidemic. As soon as you enter the room, you can see one of the main strategies: A hook hangs from a metal track that runs across the ceiling.

This isn't some bizarre way of fighting hospital-acquired infections or preventing the staff from getting needle sticks. The contraption is a ceiling hoist designed to lift and move patients with a motor instead of muscle.

The case of Terry Cawthorn and Mission Hospital, in Asheville, N.C., gives a glimpse of how some hospital officials around the country have shrugged off an epidemic.

Cawthorn was a nurse at Mission for more than 20 years. Her supervisor testified under oath that she was "one of my most reliable employees."

Scientists say nurses like Sunny Vespico are prime examples of what nursing schools and hospitals are doing wrong: They keep teaching nursing employees how to lift and move patients in ways that could inadvertently result in career-ending back injuries.

When Tove Schuster raced to help a fellow nurse lift a patient at Crozer-Chester Medical Center near Philadelphia in March 2010, she didn't realize she was about to become a troubling statistic.

While working the overnight shift, she heard an all-too-common cry: "Please, I need help. My patient has fallen on the floor."

The patient was a woman who weighed more than 300 pounds. So Schuster did what nursing schools and hospitals across the country teach: She gathered a few colleagues, and they lifted the patient as a team.

State officials in West Virginia say that in most areas, they can no longer detect any of the industrial chemical MCHM that spilled into the water supply recently. They say the water is safe for people to drink and use — including most pregnant women. But other public health specialists say they don't trust these assurances.

"I think there's no way to know what the safe levels of the chemicals are at this point," says Dr. Rahul Gupta, director of the state's largest public health department. He's in charge of protecting 250,000 people whose water was affected by the spill.

There are two important things that you learn about Michael Zusman, baker and co-author of The Artisan Jewish Deli at Home, when you bake with him.

First, his real job has nothing to do with bread or writing recipes: He's a trial judge. "Full time," Zusman says. "Wear a black robe every day."

This is the third story in our four-part series examining your digital trail and who potentially has access to it. It was co-reported by G.W. Schulz from the Center for Investigative Reporting. Yesterday, we examined how data-tracking companies are monitoring your online behavior. Today we look at your Fourth Amendment rights.

This is the second story in our four-part series examining your digital trail and who potentially has access to it. It was co-reported by G.W. Schulz from the Center for Investigative Reporting. Yesterday, we examined how data can be collected as you go through your everyday life. Today we look at how data-tracking companies are monitoring your online behavior.

This story is part of NPR's ongoing series about social entrepreneurs — people around the world who are dreaming up innovative ways to develop communities and solve social problems.

You might think that everything would have changed for the chemicals industry on April 16, 1947. That was the day of the Texas City Disaster, the worst industrial accident in U.S. history. A ship loaded with ammonium nitrate — the same chemical that appears to have caused the disaster last month in West, Texas — exploded. The ship sparked a chain reaction of blasts at chemical facilities onshore, creating what a newsreel at the time called "a holocaust that baffles description."

If you've applied for a mortgage recently, you know how hard it can be. The bank demands all kinds of obscure documents and wants proof of almost every asset you own. But an innovative mortgage program halfway around the world will evaluate your application without any extra documentation — and if you're approved, it will give you a 15-year fixed-rate mortgage. There's just one catch: The mortgages are only for low-income people in Cambodia. The program is a throwback to the days when bankers got to know their customers — and trusted them.

Part three of a three-part series by Daniel Zwerdling and Margot Williams.

The long, clunky-looking fishing boat pulls up to Day Boat Seafood's dock near Fort Pierce, Fla., after 10 days out in the Atlantic. The crew lowers a thick rope into the hold, and begins hoisting 300-pound swordfish off their bed of ice and onto a slippery metal scale.