The scary actual U.S. government debt

From Globe and Mail.

Boston University economist Laurence Kotlikoff says U.S. government debt is not $13.5-trillion (U.S.), which is 60 per cent of current gross domestic product, as global investors and American taxpayers think, but rather 14-fold higher: $200-trillion – 840 per cent of current GDP. “Let’s get real,” Prof. Kotlikoff says. “The U.S. is bankrupt.”