Politicians might be about to voluntarily put the world's largest economy into a double-dip recession.
The United States is headed for what economists are calling a "fiscal cliff" at the end of this year, when huge government spending cuts are due to kick in at the same time as a big jump in tax rates.
Not since the end of US government war spending in 1945 has there been such a sudden slamming on of the economic brakes.
Even the bipartisan Congressional Budget Office is sounding the alarm. Unless Congress acts, it says, the barely recovered US economy will go straight back into recession.
Even though analysts, political pundits and investors believe Congress will do something to prevent disaster, they agree it might take the threat of a stock market meltdown to bounce it.