“Southwest Airlines took a pivotal step towards advancing aviation safety and security by becoming the first major air carrier to begin deploying secondary flight deck barriers following the 2018 Congressional mandate. I urge other airlines to follow Southwest’s example and move expeditiously to utilize these life protecting devices…” Source: Capt. Jason Ambrosi, President of the Air Line Pilots Association, Int’l, responding to Southwest Airlines being the first major carrier to implement the use of secondary flight deck barriers.