Crisis Group warns of North Korea's chemical weapons

Amid all of the concern about North Korea's nuclear program, experts at the Ploughshares-funded International Crisis Group warn that Korea’s stockpile of chemical weapons poses another serious threat.  In a recent report, Crisis Group estimated that the North is believed to have between 2,500 and 5,000 tons of chemical weapons, including mustard gas, blood agents and sarin.  They can be delivered with ballistic missiles and long-range artillery.  Crisis Group called on the U.S. to engage North Korea in dialogue, saying “diplomacy is the least bad option.”