Stocks remained sharply lower Monday afternoon as Pfizer's (PFE:NYSE - news - commentary - research - analysis) takeover of Pharmacia (PHA:NYSE - news - commentary - research - analysis) wasn't enough to quell investor paranoia about corporate accounting. A statement from President Bush that the economy was fundamentally strong wasn't helping either. The Dow Jones Industrial Average was recently down 296 points, or 3.4%, to 8389, while the Nasdaq was falling 25 points, or 1.8%, to 1349. The S&P 500 was behind by 30 points, or 3.3%, to 891, a level it hasn't seen since July 1997.Worries about the financial...