'Tons' of mustard gas remain in Libya

Libya still has 'tons' of mustard gas. But who controls them? No one seems to know. Some 11 metric tons of lethal mustard gas, also known as sulfur mustard or yperite, remain in existence in Libya, Belgian media reported on Wednesday citing Defense Minister Pieter de Crem.Under ousted leader Muammar Gaddafi, Libya joined the Organization for the Prohibition of Chemical Weapons (OPCW) in 2004. The