NPR Staff

On Sept. 4, 2005 — nearly a week after floodwaters submerged much of the city, a call came in to the New Orleans Police Department: Officers in distress, maybe under fire, at the Danziger Bridge.

It all starts with a strange letter left for a Beijing cabdriver, tucked away in the sun visor of his taxi. In the months just before the 2008 Summer Olympics, Wang Jun is living with his wife and daughter — but the message, and those that follow, quickly tangle that quiet life in complications.

A new clinical trial is set to begin in the United Kingdom using the powerful noses of dogs to detect prostate cancer in humans.

While research has been done before, these are the first trials approved by Britain's National Health Service.

The trials, at the Milton Keynes University Hospital in Buckinghamshire, will use animals from a nonprofit organization called Medical Detection Dogs, co-founded in 2008 by behavioral psychologist Claire Guest.

A man in his early 40s with a kind, weathered face is talking to a room full of children.

"In some ways, all of us are basically abandoned or not really a wanted person," he says. "Everybody kind of give up the hope on us. But in this place, you are welcome and you have opportunity to change, and we will be with you, no matter what. This is a community of love and compassion."

Cara Nicoletti loves food almost as much as she loves books. Over the years she has found herself thinking about the delicious dishes woven into the stories she loved as a child. In fact, she tells NPR's Rachel Martin that when she re-read her old books, she found underlines that she didn't remember making in the sections about food.

High-profile, officer-involved fatalities across the country have put police departments everywhere under more scrutiny than ever.

For a lesson in how to move forward, they could look at the history of the Los Angeles police.

In the '80s and '90s, Los Angeles was trapped in a cycle of crime, crack and gang warfare. Investigative journalist Joe Domanick says back then, the Los Angeles police just made things worse with its crime-fighting strategy — which involved using military-style tactics to subdue and arrest suspects, who were mostly from minority neighborhoods.

In this season of anger in many black communities that are reacting to police brutality, we're remembering the largest urban riot of the civil rights era.

Fifty years ago this week in Los Angeles, the African-American neighborhood of Watts exploded after a young black man was arrested for drunken driving. His mother scuffled with officers and was also arrested, all of which drew an increasingly hostile crowd.

President Obama's perhaps most notable statement on race came recently in Charleston, S.C. That's where he gave the eulogy for nine African-Americans killed by a white man in a church.

The president has also continued to address the killings of black men at the hands of the police, and he's pushing to reduce the number of prison inmates, who are disproportionately black.

One of the key questions surrounding the Iranian nuclear deal is what it means for the country's so-called "breakout time." That's the length of time Iran would need to produce enough highly enriched uranium to make one nuclear weapon.

The deal would limit Iran's nuclear activity in ways that stretches the breakout time. There's a general consensus that the current breakout time is around two to three months, and that would be extended to around a year under the agreement.

Migrants are arriving in record numbers in Greece, and two boatloads of men, women and children landed Monday on the Greek island of Chios in the Aegean Sea.

All Things Considered host Melissa Block has relatives in her extended family on the island. Her husband's cousins have been assisting the migrants, who are arriving via Turkey from Afghanistan and Syria, as they reach the rocky shores.

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