FILE--Prime Minister Stephen Harper looks on as U.S. President Barack Obama waves to the media after signing the guest book upon his arrival on Parliament Hill in Ottawa, Thursday Feb. 19, 2009 in this photo by Canadian Press photographer Tom Hanson. Award-winning Canadian Press photojournalist Hanson, a fierce champion of journalistic rights whose sometimes brusque manner belied a devoted husband with a gentle soul, died suddenly Tuesday after collapsing while playing hockey.THE CANADIAN PRESS/Tom Hanson