How many gas and oil wells are in Lake Erie? If you guessed 480, you would be correct. How many are American? Zero. Offshore drilling has become one of the hot political issues in a new era of $4-a-gallon gasoline. But no one is pushing for drilling off the north shore of the United States — except the Canadians. As it has for many years, a Canadian oil and gas company is pumping natural gas out of 480 wells in Lake Erie, most of them toward the eastern end of the lake. Congress, meanwhile, has not undertaken any serious discussion...