Passengers walk behind a barrier tape of closed gates of Lufthansa’s German low-cost carrier Germanwings at Berlin Tegel airport in this February 12, 2015 file picture. An Airbus operated by Lufthansa’s Germanwings budget airline crashed in a remote area of southern France on March 24, 2015 and all 148 on board were feared dead. Picture taken February 12, 2015. REUTERS/Fabrizio Bensch/Files