The CIA, working with United States troops during the occupation of Iraq, repeatedly purchased nerve-agent rockets from a secretive Iraqi seller, part of a previously undisclosed effort to ensure that old chemical weapons remaining in Iraq did not fall into the hands of terrorists or militant groups, according to current and former US officials.
The extraordinary arms purchase plan, known as Operation Avarice, began in 2005 and continued into 2006, and the US military deemed it a non-proliferation success. It led the US to acquire and destroy at least 400 Borak rockets, one of the internationally condemned chemical weapons that Saddam Hussein’s Baathist government manufactured in the 1980s but that were not accounted for by UN inspections mandated after the 1991 Persian Gulf war.
The effort was run out of the CIA station in Baghdad in collaboration with the Army’s 203rd Military Intelligence Battalion and teams of chemical-defence and explosive ordnance disposal troops, officials and veterans of the units said. Many rockets were in poor condition and some were empty or held a liquid, the officials said. But others contained the nerve agent sarin, which analysis showed to be purer than the intelligence community had expected given the age of the stock.
Full article: CIA bought Iraqi chemical weapons say US officials (The Age)
Global Geopolitics 
America will change sides and who ever is the weaker will generally be on the weaker side until the weaker side gets stronger then? guess what? its all to do with the destruction of any that are seen as becoming a autonomous power that the leaders are not able to be corrupted.