CBS contacted AirPhotosLive.com to shoot the aerial photography for crowd size estimation of two recent rallies on the National Mall.
Photosynth is the ideal way to examine these photos, so without further ado here they're.
Glenn Beck's/Palin rally 8/31/2010 near the Lincoln Memorial. CBS News Commisioned Estimate: 87,000 people:
Stewart/Colbert rally 10/30/2010 two miles further east near the Capitol building. CBS News Commisioned Estimate: 215,000 people: