Chemical Weapons at Sea

From the time of World War I until the early 1970s, the U.S. disposed of tons of chemical weapons in the ocean. For the most part, the dumps have not been monitored and the weapons lie untouched on the ocean floor. But now the U.S. Army and others are beginning to take at look at what's down there. As part of a collaboration with UC Berkeley's Graduate School of Journalism Investigative Reporting Fellowship, Carrie Lozano has more on chemical weapons sea dumps off California's coast.