They hide an estimated $100 billion a year from the IRS, but now the U.S. Senate is turning up the heat on offshore tax havens. The man who ratted out some of these tax dodgers now lives in hiding and has a $10 million bounty on his head. This is a story straight out of our new Gilded Age -- one of billionaires, foreign bankers, corruption, secrecy and, of course, greed.
