Navy Search and Rescue Swimmer Petty Officer 1st Class Scott Chun hangs on to an evacuee pulled from a rooftop.
Navy Search and Rescue Swimmer Petty Officer 1st Class Scott Chun hangs on to an evacuee pulled from a rooftop in New Orleans, La., as his SH-60B Seahawk helicopter heads for the landing zone on Sept. 5, 2005. Department of Defense units are mobilized as part of Joint Task Force Katrina to support the Federal Emergency Management Agency's disaster-relief efforts in the Gulf Coast areas devastated by Hurricane Katrina.