Stock market in a tizzy

So much for the rebound. Stocks did open sharply higher this morning, as expected, but then it was a straight shoot down. There's a lot of uncertainty about the debt deal and a possible ratings downgrade, but much of the nervousness centers on the economy - specifically, weak manufacturing results and sluggish car sales. More bad news could come Friday when the government releases July's employment report. At last check, the Dow was off its low, down about 100 points.