An emboldened Lebanese opposition mobilized more than 800,000 people to demand an end to Syrian military domination of Lebanon, hurling a potent challenge to the Syrian-backed government here. Beirut city official Mounib Nassereddine said the estimate of 800,000 did did not include demonstrators who were still arriving from all parts of the country ahead of the rally. Thousands of Lebanese had made their way throughout the morning to the capital by car, bus and boat, heading for Martyrs Square and the grave of former prime minister Rafiq Hariri, assassinated exactly one month ago in a bomb blast. Lebanese television aired...