UPDATE 1-Airlines introduce two-person cockpit rule after Alps crash
March 26, 2015 at 22:15 PM EDT
BERLIN/PARIS, March 26 (Reuters) - Airlines rushed on Thursday to change their rules so as to require a second crew member in the cockpit at all times, hours after French prosecutors suggested a co-pilot who barricaded himself alone at the controls of a jetliner had crashed it on purpose.