Lessons from Iraq, Libya loom large as diplomats ponder Syrian weapons probe	words	meanings	sentences/phrases
When Moammar Gaddafi renounced chemical weapons in 2003, the Libyan dictator surprised skeptics by moving quickly to eliminate his country’s toxic arsenal. He signed international treaties, built a disposal facility and allowed inspectors to oversee the destruction of tons of mustard gas. But Gaddafi’s public break with weapons of mass destruction was not all that it seemed. Only after his death in 2011 did investigators learn that he had retained a large stash of chemical weapons. In a hillside bunker deep in Libya’s southeastern desert, Gaddafi had tucked away hundreds of battle-ready warheads loaded with deadly sulfur mustard. (The Washington Post, 15 September 2013)	toxic	poisonous	toxic chemicals/ gases
	arsenal	a collection of weapons such as guns and explosives	Britain’s nuclear arsenal
	mustard gas	a poisonous gas that burns the skin
	stash	a secret store	a stash of money
	tuck away	put in a safe or secluded place	She kept his letters tucked away in a drawer.
	warhead	destructive material carried by missile	nuclear warheads
	sulfur	a chemical element