Ever heard of a "Ponzi sceme"? In this Jan. 20, 1935, file photo, Charles Ponzi is shown in the garden of his home in Rome, Italy, after being deported from the United States. Ponzi was an Italian immigrant who cheated investors in Boston out of about $10 million in 1919 and 1920 in a short-lived scheme involving the use of outdated exchange rates for European currency. Ponzi was convicted of mail fraud in 1920 and served time in prison before being deported to Italy in 1934. (AP Photo, File)