Mob - noun. The common people; the masses; populace or multitude.

Here's a picture I got online from geoeye.com, it's a picture of Washington DC, over the capital building at the time of the inauguration of Barack Obama, the largest and most expensive inauguration yet. You can see huge groups of people from the front of the capital all the way to the Washington monument. I'm assuming there were large screens by the monument itself due to the group of people and how they are situated. This is a larger view, on geoeye.com you can see it zoomed in a litte better. How crazy. Click to zoom in.