You're right TB on Medicare ... my apologies ... but the following link points to an article by James Hamilton of the University of California, San Diego. His article points to a debt of $70 trillion ... others include and exclude other items and the numbers in national debt (including unfunded liabilities) vary from over $30 Trillion to nearly $100 Trillion. To paraphrase Everett Dirkson ... "A trillion here and a trillion there and pretty soon you're talking real money."

http://www.thenewamerican.com/usnew...lly-70-trillion