We now know what's on the other side of that menacing year-end "fiscal cliff." Another cliff.
While White House and Republican congressional leaders labor behind closed doors to cut a deal to steer clear of the first cliff — mandatory tax increases and spending cuts due to hit in early January — another treacherous economic precipice looms.
It's when the government will again bump up against the congressionally-set debt ceiling.
The debt limit has been a growing source of acrimony between presidents and opposition parties.