How Madoff's illicit dealings came up before the SEC in a whistle blower case but the SEC failed to investigate the leads sufficiently over the years leading to the giant Ponzi scheme that is expected to cost investors some $50 billion mostly wealthy investors known to Maddoff. Madoff was once the chairman of the Nasdaq Stock Exchange and he was even appointed to a25 member advisory committee on market structure. Most of the money seems to have gone into a high flying lifestyle with yachts and resort homes.