A young boy and girl are airlifted in a U.S. Air Force HH-60 Pave Hawk helicopter of the 106th Rescue Wing, New York Air National Guard, over flood waters caused by Hurricane Harvey in Houston, Texas, U.S. in a still image from video September 1, 2017. USAF/Senior Airman Joshua Hoskins/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY