Every year the military brings a whole bunch of military equipment to the Mall in DC. The Mall is that big grassy field surrounded by the White House and Capital and Smithsonian museums, etc.
They bring dozens of various tanks, helicopters, and other military vehicles. They also had a submarine and a few military robots too. As such, I interviewed the operators of two of the robots . . .
iRobot PackBot . . . It was a 140mb video file so I could only have it put on google video:http://video.google.com/videoplay?docid=3596852678406287496
And the Raven, a hand launched UAV: