Three-country summit ends


By The Associated Press

SUMMIT FINALE: President Bush and the leaders of Mexico and Canada conclude their summit acknowledging differences but stressing unity.

GUEST WORKERS: Bush and Mexican President Vicente Fox reiterated their support for a program that would allow working illegal immigrants in the U.S. to stay.

OTHER ISSUES: Canadian Prime Minister Stephen Harper expressed concern over a plan to require passports or similar documents from Canadians entering the U.S.