Canadian Prime Minister Paul Martin wears a hardhat and protective glasses during a tour of a sawmill in Richmond just south of Vancouver, British Columbia December 14, 2005. Martin escalated a war of words with the United States on Wednesday, telling Washington not to dictate to him what topics he can raise in the run-up to Canada's Jan. 23 election. U.S. Ambassador David Wilkins warned Martin and other Canadian politicians on Tuesday not to bash the United States as part of their campaigning. But Martin -- who has regularly attacked the U.S. stance on a bilateral trade dispute over softwood lumber and also criticized Washington's approach to climate change -- said he was not paying attention. REUTERS/Andy Clark