Tech. Sgt. Vanessa Schook, a 99th Airlift Squadron flight attendant, performs a preflight safety inspection on a C-20B at Joint Base Andrews, Md., Jan. 27, 2017. Flight attendants are safety experts, customs specialists and culinary artists, often preparing meals from scratch at 30,000-40,000 feet, while ensuring the safety of the crew and passengers at all times. (U.S. Air Force photo/Senior Master Sgt. Kevin Wallace)