Police clashed with rioters today participating in the "Million Mask March" in Washington DC. In one incident at the Reagen Building, a protester had a scuffle with a police officer, which ended up with him being tased onto the ground. A friend of his then tried to get away, and was also tased, but he managed to escape the taser and sprint across the street before officers on foot and from a vehicle were able to surround him. When other protesters surrounded the arresting officer, he threatened them with pepper spray while bringing the suspect into custody. Note: Video Filmed and edited by Ford Fischer, with a short clip of the initial scuffle submitted by Ben Cutler.