When the US goes to war, corporate America goes too. There are contracts for caterers, tanker drivers, security guards and even interrogators, many of them through companies with links to the White House. Jane Corbin investigates claims that as much as $23 billion may have been lost, stolen or not properly accounted for in Iraq. Now more than 70 whistleblower cases threaten to reveal the scandals behind billions of dollars worth of waste, theft and corruption during the war. The US justice department has imposed gagging orders which prevent the real scale of the problem emerging.