A widely watched measure of future economic activity fell for its third consecutive month in September because of rising energy costs that may slow the nation's economy through year-end, a private research group said Thursday. (snip) Energy prices had been steadily climbing prior to Hurricanes Katrina and Rita, but the storms aggravated shortages and propelled prices higher. This hurt consumer spending and also made certain raw goods more expensive for manufacturers. [today the price of gasoline, on futures market, is near $1.60, oil is near 60 instead of 70 and natural gas has dropped 2.00 in two weeks. Winter may...