The guru of this doomsday line of thinking may be economist Nouriel Roubini, thrust into the forefront after predicting the chaos wrought by the subprime mortgage crisis and the collapse of the housing bubble.

"The US has run out of bullets," Roubini told an economic forum in Italy earlier this month. "Any shock at this point can tip you back into recession."

But other economists, who have so far stayed out of the media limelight, are also proselytizing nightmarish visions of the future.

 [ AFP ]