What are the most evil companies in the world?

I'd rearrange the order, putting Blackwater first, Halliburton second, Wal-Mart third. I might be willing to take Microsoft off the list. But you need more tobacco companies, and oil companies, too. (Remember the bumper stickers? "We don't care. We don't have to care. We're Exxon.") Throw on AIG, and if there's anything left of Enron, put them on, too.