in rome. the ceremonies went on without incident. the pope urged the crowd to live as if they were brothers and sisters in the same family. here at home the race to get that perfect christmas present is all but over. christmas morning is less than two hours away. and some frantic shoppers used every last second to try to finish up their shopping list. alli rasmussen is in san francisco with more. reporter: the christmas tree here in union square is all aglow. and 6796 much of the crowd has gravitated over to union square. the ice skating rink. and some are watching some of these street performers still out here this morning singing some christmas carols. a much different scene from what we saw out here a few hours ago. a less crowded throng of shoppers pouring out of stores to tackle their shopping list. what motivates a last-minute shopper? for some it s a rush. i always wait for the last minute, love the excitement of christmas eve. i just love it. others love the