A new government audit has found at least $6 billion in US taxpayer money has gone to private military and security companies operating in Iraq. The Special Inspector General for Iraq Reconstruction says that’s about 12 percent of the $50 billion in Iraq reconstruction money that has mostly flowed to American corporations. A recent internal report found the US has contracted at least 310 private security companies in Iraq. The most notorious of the companies, Blackwater Worldwide, has yet to face any charges for the September 2007 massacre of seventeen Iraqis in Baghdad’s Nisoor Square.