Millions of men and their doctors are trying to understand a federal task force's recommendation against routine use of a prostate cancer test called the PSA.

The guidance, which came out last week, raises basic questions about how to interpret medical evidence. And what role expert panels should play in how doctors practice.

The runoff vote for Egypt's next president will pit the Muslim Brotherhood's candidate against the last prime minister to serve under Hosni Mubarak, according to full official results released Monday by the election commission.

Commission chief Farouq Sultan told a news conference that the Brotherhood's Mohammed Morsi and Ahmed Shafiq, a former air force commander and a longtime friend of the ousted leader, were the top two finishers in the first round of voting held on May 23-24.

In Egypt, Ahmed Shafiq and the Muslim Brotherhood candidate, Mohammed Morsi, will face each other in a runoff election next month. David Greene talks with NPR's Soraya Sarhaddi Nelson about what these results might mean for Egypt's future.

Mel and Joey Schwanke have been married 64 years. The Fremont, Neb., couple appears to be the perfect match — perhaps their secret is matching outfits. The Schwankes told Omaha's KETV they've dressed alike for decades. They've got a closet full of 146 combinations. Mel's tie always matches the patterns on Joey's dresses.

David Greene speaks with NPR's Joe Palca about Morning Edition's upcoming series, "Summer Science."

Vietnam veterans never got the homecoming many feel they deserved. On Monday, a group of veterans, the Department of Defense and others will begin the first of many ceremonies to honor those who served and commemorate the 50th anniversary of the start of the Vietnam War. Events will be planned over the next 13 years, concluding with the fall of Saigon. Many will gather Monday at the Vietnam Memorial Wall for a wreath ceremony, including President Obama.