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Most days they're mild-mannered window washers, but earlier this week they donned the colorful tights and masks and became Power Rangers, rappelling down the side of Children's Hospital of Philadelphia and thrilling the young patients.

Employees of Jenkintown Building Services started at the eighth floor and stopped along the way to interact with kids through the glass.

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A legendary airplane that helped America win World War II is being reborn at age 75. The B-17 bomber "Memphis Belle" flew 25 missions against Nazi Germany and then came home to help sell war bonds and raise spirits.

In recent years, the Belle has been undergoing a patient and precise restoration at the National Museum of the Air Force Museum near Dayton, Ohio. I went to see the work in progress and talk with some of the many technicians and volunteers.

Recovering alcoholics tend to avoid the bar. But when the bar is your office, that's not so easy. New Orleans bluesman Anders Osborne figured out how to get back to work despite the temptations, and now he's trying to help others.

Drugs and alcohol nearly destroyed Osborne's career, and his family. The guitarist and singer-songwriter was showing up for tour dates unable to perform. At his worst, he was spending nights on a park bench.

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Copyright 2017 NPR. To see more, visit http://www.npr.org/.

MARY LOUISE KELLY, HOST:

And it's time for sports.

(SOUNDBITE OF MUSIC)

The foods we choose to put on our plates — or toss away – could have more of an ecological impact than many of us realize.

On Earth Day, here are some ways to consider how our diet impacts the planet.

Waste not, want not

You've heard the numbers on food waste. More than 30 percent of available food is tossed each year in America. It's enough to fill Chicago's 1,450-foot-tall Willis Tower (formerly known as the Sears Tower) 44 times over.

To say that the U.N.'s peacekeeping mission in Haiti has been controversial is an understatement.

The peacekeepers are blamed for bringing cholera to the island nation for the first time.

They were accused of sexually abusing locals. Haitians have accused them of being an occupying army.

But the peacekeepers also have been credited with bringing a measure of stability to one of the most impoverished, unstable nations in the hemisphere.

And now, after 13 years, the end of the mission is in sight.

Things were going well for the Democrats in Miami.

Democratic National Committee Chairman Tom Perez and Sen. Bernie Sanders, I-Vt., hadn't exactly sold out the downtown theater they were campaigning in, but the audience was solid and energetic.

The anti-DNC catcalls that had plagued early stops on the uneasy allies' weeklong unity tour hadn't surfaced. And both Perez and Sanders had delivered fiery speeches that had pumped up the crowd in a key city of a critical swing state.

Sanders was shaking hands with supporters as David Bowie's "Starman" blared.

Peter Uribe left Chile at 21 with his wife and 2-year-old daughter, landing in Baltimore and finding steady work in construction. His social life revolved around futbol, playing "six or seven nights a week in soccer tournaments," he says.

A couple of years after his arrival, he broke his foot during a game and afraid of the cost, didn't seek medical care.

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