From the article:
"We all agree on what the choices are and what the numbers are," Fraser says.
Their basic message is this: If the United States government conducts business as usual over the next few decades, a national debt that is already $8.5 trillion could reach $46 trillion or more, adjusted for inflation. That's almost as much as the total net worth of every person in America — Bill Gates, Warren Buffett and those Google guys included.
A hole that big could paralyze the U.S. economy; according to some projections, just the interest payments on a debt that big would be as much as all the taxes the government collects today.
And every year that nothing is done about it, Walker says, the problem grows by $2 trillion to $3 trillion.