This week, the National Transportation Safety Board recommended lowering the legal limit of blood alcohol content for drivers to .05 or even lower. Currently, it's illegal to drive in all states with a BAC of .08 or higher. Host Scott Simon speaks with Dr. Anthony Liguori of Wake Forest School of Medicine about alcohol's impact on driving ability.

With the death of a possible suspect in one notorious case, activists are weighing the FBI's efforts to tackle cases from the 1950s and '60s. Some are calling for a congressional hearing to see whether the FBI has done enough investigating.

Of all the current Washington scandals, the one involving the IRS appears to have the most staying power. It rolls into one package an agency many love to hate, partisan suspicions and the American appetite for conspiracies.

Authorities say one train derailed, colliding with a second train near Fairfield.

President Obama's commencement speeches often seem more about the big-picture state of the union than do his State of the Union addresses, which read like to-do lists. And his assessment of where the country stands and where it's going has changed over the past four years.

The Ruth Ellis Center in Highland Park, Mich., is making an effort to meet its clients where they are — on the dance floor, specifically with the dance form known as "vogue." From there, the center can connect them with counseling, health services, tutoring and clean clothes.

Authorities are revisiting a triple murder in the Boston suburb of Waltham. One of the victims may have been a friend of bombing suspect Tamerlan Tsarnaev. Tsarnaev would sometimes spar at the same mixed martial arts gym where the victim worked as an instructor.