Guns and Race: What's behind the Killing of Trayvon Martin?

Controversy over Trayvon Martin and racial profiling reached the White House today. We hear what the President said and update developments in a case that has gripped the nation's attention. Also, President Obama picks surprise nominee Jim Yong Kim for the World Bank, and casualties and near casualties on the way to the Final Four.

Banner image: Protesters hold cans of ice tea and Skittles which is what Trayvon Martin is reported to have been carrying when he was killed on February 26 in Sanford, Florida, on March 21, 2012 in Miami, Florida. Photo by Joe Raedle/Getty Images