St. Peter's fills for Pope Francis installation

Thousands of people are pouring into St. Peter's Square to witness the official start of the papacy of the first pope from the New World.

The blue and white flags from Pope Francis' native Argentina fluttered Tuesday above the crowd that Italian media estimate could reach 1 million. Emergency crews set up barricades for nearly a mile (two kilometers) along the main boulevard leading to the square to control the masses. (AP)