In the context of 'Because Ballinger was still responsible for his other flights as well as Flight 175, his warning message was not transmitted to Flight 93 until 9:23.', does 'Someone was trying to warn the plane about a highjacking.' stand alone without direct association?
Because Ballinger was still responsible for his other flights as well as Flight 175, his warning message was not transmitted to Flight 93 until 9:23.###Someone was trying to warn the plane about a highjacking.