The facts are ugly. The federal debt, which has averaged less than 40% of the total economy, now represents more than 60%. It's likely to hit 100% in a little over a decade.
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Pretty much every impartial analyst has declared the situation unsustainable. And many European countries have already been hit by nervous credit markets worried about their debt levels.
Bottom line: If Congress and the president fail to make changes to current policies, the United States will experience some form of a fiscal crisis.