Japan surrenders part of its nuclear stockpile for disposal

Aired: 3/24/2014 | 0:05:26 | Clip
Japan said it would relinquish a large cache of weapons-grade plutonium and highly enriched uranium -- enough to build dozens of nuclear weapons -- to the U.S. for disposal, just as a nuclear security summit opens at The Hague. Gwen Ifill assesses the deal with Matthew Bunn of Harvard University.