Just like a snowball, keeps rolling and getting bigger and bigger.
Check it out:

On the same day House Speaker John Boehner said he would bring a “clean” debt ceiling bill to the House floor — and join Democrats in voting for a 13-month extension of the debt limit — the head of the Congressional Budget Office declared that the “large and growing federal debt” could eventually increase the risk of a “fiscal crisis.”

“The large budget deficits recorded in recent years have substantially increased federal debt, and the amount of debt relative to the size of the economy is now very
high by historical standards,” Elmendorf told the Senate Budget Committee.