NPR News

Now that 911 recordings show how a white Florida man continued to follow a 17-year-old black boy even after police advised him not to — and captured the sound of the man killing the unarmed youth with a shot to the chest — Trayvon Martin's family wants the FBI to take over the investigation into his killing.

The gunman says it was an act of self defense during a Neighborhood Watch patrol.

There are fears in France today that the killings of at least four people outside a Jewish school in the city of Toulouse are linked to earlier murders of three soldiers and that the victims were targeted because they belonged to ethnic or religious minorities.

One in every four Americans receives their news digitally from mobile devices, which are helping to expand the consumption of journalism across multiple sources, according to a new report released Monday.

The 2012 State of the News Media Report, conducted by Pew Research Center's Project for Excellence in Journalism, provides an in-depth examination of how Americans read news as their consumption habits transition from the printed form to the digital.

Four years since they first began making music together, the Brooklyn-based duo Tanlines is finally releasing an album: Mixed Emotions, out tomorrow. The band is Eric Emm, who sings and plays guitar, and Jesse Cohen, who plays drums, keyboards and an assortment of electronic instruments. Cohen is also the chattier of the two.

"We use a lot of different drum kits that are in a computer," Cohen explains. "We also play a lot of stuff live, and a lot of time you can't really tell which is real and which is fake. That's sort of a thing that we like to play with."

When the Supreme Court hears arguments over President Obama's health care law next week, one item on the table will be a program that has been in place for nearly 50 years.

Medicaid, a joint federal-state program that provides health care for the poor, was signed into law by Lyndon Johnson. Under the Affordable Care Act, it will be greatly expanded and provide coverage for millions of uninsured, including low-income adults without children.

With Greece entering its fifth year of recession and dealing with harsh austerity measures imposed as part of a eurozone bailout deal to save it from default, its society is in upheaval. Opinion polls suggest the old political system is collapsing, and extremist parties are gaining popularity ahead of spring elections.

At a recent protest in Athens, a large bronze bell tolled as thousands of policemen in full uniform marched solemnly through the streets. They ominously waved their handcuffs at Parliament, shouting, "Take your bailout plan and get out of here."

When Susy Mansfield needed a hip replacement in 2009, her orthopedic surgeon chose a relatively new and untested kind of artificial hip made entirely of metal.

"He said, 'You're young. Metal is good for younger people. It's going to last a lot longer,' " says Mansfield, who was 57 at the time.