Taliban rebels launched a large-scale attack on a coalition military base Wednesday in southern Afghanistan, killing an American and a Canadian soldier but losing 32 of their own in a fierce American-led retaliation. The fighting was the deadliest in months and reflected a growing intensity of militant attacks after the Taliban warned of a renewed offensive this year, more than four years after the hard-line militia was ousted by U.S.-led airstrikes. More than 3,000 British troops are readying to take control of the volatile area. Full Story