Three F-16 Fighting Falcons fly in formation after receiving fuel from a KC-135 Stratotanker assigned to McConnell Air Force Base, Kan., Feb. 3, 2017, en route to Houston, Texas. The U.S. Air Force Air Demonstration Squadron, the Thunderbirds, will be performing a flyover during the 2017 Super Bowl. (U.S. Air Force photo/Airman 1st Class Erin McClellan)