LOOKING BOTH WAYS As seen through a night-vision device, U.S. Army pull security waiting for CH-47 Chinook helicopters during Operation Champion Sword, an air assault mission, in Khost province, Afghanistan, Aug. 4, 2009. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 131908-N-FUR25-495.jpg Photo Gallery