OTTAWA (Reuters) - A Canadian member of Parliament charged with improving ties with the United States apologized on Thursday for saying "let's embarrass the hell out of the Americans in front of other countries." The gaffe by Marlene Jennings came exactly two weeks after Canada's Liberal government irritated Washington by refusing to join the U.S. missile defense system. Jennings -- the parliamentary secretary for Canada-U.S. relations -- reports directly to Prime Minister Paul Martin, who came to power in December 2003 saying he wanted better relations with Washington. "I would apologize to the members in this House that my comments...