The US is disposing of chemical weapons because they're enormously expensive and simply not that effective. Chemical weapons usage by Cuba in Angola didn't real

The US is disposing of chemical weapons because they're enormously expensive and simply not that effective. Chemical weapons usage by Cuba in Angola didn't really turn the tide of the war. Also, the US has nuclear weapons plus a huge fleet of bombers with conventional weapons. Pretty easy to give up an expensive party-trick when you basically decapitate the military of most countries in just a few hours.