Oil Drilling, Spills And Capping One Year After BP Blowout

Before April 20, 2010, many Americans had never heard of a blowout preventer. But for the 87 days that followed, one deep in the Gulf of Mexico dominated the headlines because it had failed, allowing almost 5 million barrels of oil to flow into the gulf.

A year later, what is known about what went wrong with the technology? And what system is now in place to cap an oil leak, should it happen again? David Hammer, a reporter for The Times-Picayune joins us from New Orleans.