Treasury Secretary Timothy Geithner was on Capitol Hill Wednesday to talk about the implementation of Dodd Frank. But the questions focused on why the New York Fed, under Geithner, didn't act more aggressively when it first learned about possible manipulation of a key interest rate.
Each summer, about half of the surface of the Greenland ice sheet melts. That's on average, but this month, in just four days, an estimated 97 percent of the ice sheet's surface has already melted. That rate is abnormally fast and it comes just a week after a huge iceberg broke off a glacier in Greenland.
For more now, I'm joined by Tom Wagner. He's a scientist at NASA. Hi there, Tom.
TOM WAGNER: Hello.
CORNISH: Now, to start, how'd this come to NASA's attention?
Mariel Zagunis, the two-time gold medalist in sabre, has been named the U.S. flagbearer for Friday's Opening Ceremony of the London 2012 Olympics. Zagunis, who was chosen by her peers for the honor, will be the first fencer to carry the flag since 1968, when Janice Lee Romary led the U.S. team in Mexico City.