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.

It's been a long slog already for the bipartisan immigration overhaul proposed by the Senate's Gang of Eight.

The legislation has been the target of more than 300 amendments during days of debate and votes by the Senate Judiciary Committee. But while the bill has largely held its own so far, its prospects for getting through Congress remain uncertain.

In Judiciary Committee Chairman Patrick Leahy's view, the immigration overhaul is "moving very well."

"It's moving a lot faster than people said it would," says Leahy, a Vermont Democrat.

In the seven years since her last album, Audra McDonald has kept busy. She spent several years in Hollywood, filming the television series Private Practice. She's gotten divorced and remarried, absorbed the shock of losing her father in a plane crash and watched her daughter, Zoe, grow up from a kindergartener to a middle-schooler.

France is officially the 14th country to legalize gay marriage. Saturday, President Francois Hollande signed a bill that Parliament had passed in April, which gives same-sex couples the right to marry and adopt.

Two Metro-North Railroad trains have collided on a stretch of track near Fairfield, Conn., causing a "major derailment" and "preliminary reports of injuries," according to the Metropolitan Transportation Authority.

[Update at 8:55 p.m. ET: The Associated Press quotes Connecticut officials as saying about 50 people have been hurt, four of them seriously.]

According to The Hartford Courant:

Of all the controversies swirling around the Obama White House, the Internal Revenue Service scandal seems likeliest to have the longest shelf life.

While the Benghazi affair has long been in the news, it's never really taken off as an issue beyond the Republican base.

The British Foreign Office is happy to assist its citizens, but officials want to make clear that there are some requests they won't fulfill.

Such as supplying Olympic tickets or doing a background check on that Swedish woman you met online.

Those are just a few of the "often good natured" but distracting requests that the Foreign & Commonwealth Office (FCO) says it received over the past year, according to a press release issued Thursday.

It's Cinderella plus Jackie Robinson times two. When Venus and Serena Williams burst onto the lily-white world of tennis, they changed the game and made history: They were sisters. From a poor neighborhood. Who brought unprecedented power to the game. And both reached No. 1.

Their journey is the subject of a new documentary called Venus and Serena, showing in select theaters around the country.

America's Cup, the oldest and most prestigious sailing competition, has hit some choppy water.

The death last week of British sailor and gold medal Olympian Andrew "Bart" Simpson when the boat he was crewing capsized and broke up during a practice run off San Francisco, has prompted tough questions about safety.

When the American Psychiatric Association releases its new Diagnostic and Statistical Manual of Mental Disorders -- DSM-5 -- this weekend, lots of journalists and commentators will refer to it as "psychiatry's bible."

That's a term that makes the manual's authors and other mental experts cringe.