January 11, 2018 12:42 pm Amazing Aerial Video Shows Icy Potomac Winding Through Great Falls Temperatures dropped so low that Great Falls partially froze over, and Chopper4 caught some of the amazing, natural beauty on camera. Local 2:22 GW protesters celebrate after arrestees are released from DC police custody 3:50 Crews clear George Washington U. protest encampment after police arrest 33 people 8:06 DC mayor, police chief speak about 33 George Washington U. protest arrests 6:51 DC police use pepper spray, make arrests at George Washington U. 3:36 DC police clearing out George Washington U. protest encampment