North Of The Border

President Bush, right, and Canadian Governor General Michaelle Jean inspect an honor guard upon his arrival in Ottawa, Monday, Aug. 20, 2007, for the Montebello Summit, where Mr. Bush met with Canadian Prime Minister Stephen Harper and Mexican President Felipe Calderon.

Canadian Prime Minister Stephen Harper, center, U.S. President George W. Bush, right and Mexican President Felipe Calderon wave to photographers as they arrive for dinner at the North American Leaders Summit in Montebello, Quebec, Canada, Monday Aug. 20, 2007. Security and trade issues dominated talks among the North American leaders.

Mexican President Felipe Calderon, center, and U.S. President George W. Bush, right, wait as Canadian Prime Minister Stephen Harper opens the door before their dinner at the North America Leaders Summit in Montebello, Canada, Monday Aug. 20, 2007.

Police and protesters come face to face as they clash in Montebello, Quebec, Canada Monday, Aug. 20, 2007. Riot police fired tear gas and pepper spray to hold back protesters outside the Chateau Montebello resort as Canadian Prime Minister Stephen Harper met President Bush to kick off the North American Leaders' Summit. Mexican President Felipe Calderon is also attending the summit.

Police grab a protester in Montebello, Canada, Monday, Aug. 20, 2007. Riot police fired tear gas and pepper spray to hold back protesters outside the Chateau Montebello resort Monday as Canadian Prime Minister Stephen Harper met President Bush to kick off the North American Leaders' Summit. Mexican President Felipe Calderon also attended the summit.

From left to right, President Bush answers questions during a news conference with Prime Minister Stephen Harper and Mexican President Felipe Calderon at the closing of the North American leaders summit in Montebello, Quebec, Canada on Tuesday, Aug. 21, 2007.

President Bush wipes his eyes during a press conference with Mexican President Felipe Calderon and Canadian Prime Minister Stephen Harper at the 2007 North American Leaders summit at Fairmont Le Chateau Montebello on Tuesday, August 21, 2007, in Montebello, Canada.

President Bush gestures as he responds to a question during the closing news conference at the North American Leaders Summit in Montebello, Quebec, Canada, Tuesday, Aug. 21, 2007.

Canadian Prime Minister Stephen Harper, center, stands with President Bush, left, and Mexican President Felipe Calderon following the closing news conference at the North American Leaders Summit in Montebello, Quebec, Canada, Tuesday, Aug. 21, 2007.