Last week we talked about how the Gulf War could have been avoided. It wasn't of course, but believe it or not, that wasn't the biggest mistake of that whole ordeal.Let's talk about what actually was one history's biggest blunders. After kicking Iraq's butt in the war, Bush Senior had Saddam Hussein right where he wanted him. It was like holding a loaded gun with the safety off. But instead of pulling the trigger and ending this nightmare, he decided to play it safe.