Enormous Crowd Streams From Mall

or
Obama And Two Million Of His Closest Friends Go Back Home

The Washington Post reports on the post-inauguration dispersal. Because nobody wants 1.8 million people hanging around in the cold all week.

The historic crowd that gathered to see Barack Obama sworn in as president has now begun leaving the Mall, crowding Metro stations and jamming downtown streets with human gridlock.

Along the Mall -- which was packed even beyond the Washington Monument -- some spectators began leaving as soon as Obama had taken the oath of office, too frozen even to wait for his address. Their trickle became a slow-moving flood after the inaugural program concluded.

The understatements in that headline are "enormous" and "crowds". It's the vigor of the verb "stream" that I doubt.