Corn futures swung back and forth before winding up with modest gains of less than 2 cents. Wheat prices at all three markets clocked double-digit losses today after six consecutive sessions of higher closes. General Comments Energy and financial markets took center stage today. Brent crude oil closed below $90 for the first time in two years, while WTI crude at the NYMEX was down more than $2.00 and near $85.25 at last look. Falling demand for crude oil is seen as signaling global economic weakness. This sent U.S. stocks tumbling lower and more than wiping out yesterday's big gains. The Dow closed down 335 points. Volatility in the stock market is on the rise. This is the third day in a row that the Dow has moved more than 200 points and...