VANCOUVER, British Columbia Christopher Key knows exactly what he would be giving up if he left Bellingham, Washington. . "It's the sort of place Norman Rockwell would paint, where everyone watches out for everyone else and we have block parties every year," said Key, a 56-year-old Vietnam War veteran and former magazine editor who lists Francis Scott Key, who wrote "The Star-Spangled Banner," among his ancestors. . But leave it he intends to do, and as soon as he can. His house is on the market, and he is busily seeking work across the border in Canada. For him, the...