WATER SAMPLE U.S. Navy Lt. Michael Kavanaugh takes water samples as a Guatemalan boy watches in Puerto Barrios, Guatemala, Sept. 10, 2010. Kavanugh and other sailors aboard the USS Iwo Jima are participating in the Continuing Promise 2010 humanitarian civic assistance mission. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 929919-H-XTB05-436.jpg Photo Gallery