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During a second day of testimony in the perjury trial against All-Star pitcher Roger Clemens, his old teammate Andy Pettitte walked back some of his previous testimony.

Yesterday, Pettitte said that he remembered having a conversation with Clemens in 1999 or 2000 in which Clemens admitted to using human growth hormone.

All week, we've been celebrating our fifth anniversary on the air. We actually hit that milestone on Monday, and we've been trying to have some fun with it — talking with 5-year-olds about what's fun about being 5; about five-year financial plans; and we checked in with some of the guests who were with us at the very beginning.

At this point, I realize you might be saying to yourself: Five? Big whoop! Come back to me when you're in double digits at least.

The United States has a higher rate of babies born early — and therefore at greater risk of death or health problems – than more than 125 other countries, including Rwanda, Uzbekistan, China and Latvia, according to a report out today.

About 12 percent of U.S. babies are born at 37 weeks or less, according to the report, which found a worldwide range of as few as 4.1 percent of babies in Belarus to as many as 18 percent in Malawi. Full term is considered 39 weeks.

Gareth Williams was a talented agent for Britain's secretive and renowned foreign intelligence agency. Williams was a codebreaker for MI6, until he was found dead in his apartment.

Four NFL players tied to the so-called bountygate have now been hit with suspensions by the league. They were part of a scheme in which a New Orleans Saints coach created a bounty system for hits that knocked opponents out of games.

After hitting its highest mark since December 2007 on Tuesday because of a bullish report about the health of the manufacturing sector in April, the Dow Jones industrial average is right now down about 45 points (less than 0.3 percent) because of negative news about hiring and manufacturing.

Asian-Americans are one of the fastest growing minority groups in the country, according to the U.S. Census Bureau. A poll released Tuesday shows that a third identify as independents. Host Michel Martin explores whether this group is an untapped voting block. She speaks with a co-author of the poll, Mee Moua, and USC professor Jane Junn.

This week, the Beauty Shop ladies discuss whether President Obama and Mitt Romney are politicizing last year's killing of Osama bin Laden. They also weigh in on campaign ads meant to reach niche voters. Host Michel Martin checks in with professor Asra Nomani, policy analyst Michelle Bernard, and bloggers Viviana Hurtado and Danielle Belton.

NPR's Tell Me More turns five this week. During this time, the program has produced more than 1,300 hours of interviews that have piqued the interest of even the youngest listeners. Today, host Michel Martin hears from 5-year-old twins, Eric Miles Darby and Lauren Darby of Marietta, Georgia, about finally taking off those training wheels.

Water by the Spoonful is this year's winner of the Pulitzer Prize for Drama. It's a play about addiction, memory, and the Iraq War. Host Michel Martin speaks with playwright Quiara Alegria Hudes, who says that her people don't have to wallow in misery, that we can laugh, even in our darkest moments.