President Felipe Calderón of Mexico, during an official visit to London, said his country and the United States would work as partners in the fight against violent drug cartels but would not conduct joint military operations against them. Sharing of intelligence will continue, he told reporters, but American forces will not be conducting raids with their Mexican counterparts on Mexican soil. Mexicans have expressed alarm that the presence of more American soldiers at the border would adversely affect their country’s sovereignty. Full Story