President Barack Obama has arrived in Mexico for his first three-way meeting with leaders of the United States' neighbors. Obama landed last evening in Guadalajara for a lighting-quick, two-day visit with his counterparts from Mexico and Canada. At the top of the agenda: a swine-flu outbreak that started in Mexico and has spread around the world. Obama, Mexican President Felipe Calderon and Canadian Prime Minister Stephen Harder say they will try to build on earlier cooperation to handle an expected new wave of cases during North America's upcoming flu season.