OTTAWA - Canada should work with the United States in the controversial missile defence program for political reasons, not just security concerns, Defence Minister Bill Graham says. "We are talking about the nature of the relationship we want with the United States and that's why I'm a strong proponent," Graham said in an interview. "My view is, on continental defence matters, we should be really accommodating of the Americans and work with them as closely as we possibly can." Both Canadian and U.S. officials have argued the defence shield, costing an estimated $53 billion (U.S.), is needed to protect North...