Bankruptcy of the US is a mathematical certainty

“If you run the numbers, on all those numbers that you just talked about, which I think are accurate, very accurate, in 20 or 25 years, the United States goes bankrupt,” said Allison. “It’s a mathematical certainty. ... “Now, countries don’t go bankrupt the way companies do,” said Allison. “They don’t file bankruptcy. They usually hyper-inflate.
--http://www.cnsnews.com/news/article/former-bbt-ceo-bankruptcy-us-mathematica