Matt Damon plays the part of a slightly insane fellow who works for ADM and decides it would be a good idea to become a Government Informant. Well, actually, he thinks it’s not that great an idea, but it seemed like a good idea at the time. Mark Whitacre can’t help himself. He thinks of he is the man in the white hat, as the hero in his own story, as a man doing the right thing. The only problem is that he is a lair and a thief. This tends to make his usefulness as a whistleblower a bit…