When actress Geena Davis was watching children's shows with her daughter a few years ago, she became so troubled by the lack of female representation, she started a think tank on gender in the media. The Geena Davis Institute recently partnered with University of Southern California professors to conduct a study analyzing gender roles and jobs on screen.

The good news? Prime-time television's pretty decent at depicting women with careers.

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.

University of New Hampshire professor Yitang Zhang announced this week that he has come close to solving a centuries-old problem: proving the twin prime conjecture. Host Scott Simon gets an explanation from Weekend Edition Math Guy Keith Devlin of Stanford University.

NPR's Scott Simon talks to Connie Schultz, former columnist and Pulitzer Prize-winning journalist for the Cleveland Plain Dealer. Starting this summer, the paper's owners will be reducing home delivery to three days a week and making huge cuts in the newsroom staff.

NPR's Ari Shapiro joins host Scott Simon to talk about the Obama administration's week. The president was buffeted by revelations that the IRS had targeted Tea Party groups seeking tax-exempt status and that the Justice Department had subpoenaed reporter phone records. On top of that, Republicans continue to allege that the White House engaged in a cover-up of talking points about the attack in Benghazi, Libya.

Host Scott Simon talks to ESPN's Howard Bryant about the NBA playoffs, Washington Nationals outfielder Bryce Harper's collision with a wall, and David Beckham's retirement from soccer.

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.

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.