David Gonzalez, of Tannersville, Pa., is greeted by a colleague at the International Security Conference & Exposition in Las Vegas on Thursday, March 29, 2012. Gonzalez was a passenger aboard JetBlue flight 191 from New York to Las Vegas, credited with subduing the plane's captain after the captain went on a bizarre rant that forced an emergency landing in Amarillo, Texas. (AP Photo/Oskar Garcia)