NEW : A flight attendants union president says the move `` makes no sense '' The TSA said it would allow small knives onto planes , starting April 25 . But a new report from the International Association of Machinists and Aerospace Workers (IAM) claims that the agency is actually trying to ban all knives on airplanes by requiring passengers carry them in their checked bags. Delta 's CEO says the move is n't worth the added risk to airline staff and passengers .
NEW : A flight attendants union president says the move `` makes no sense '' The TSA said it would allow small knives onto planes , starting April 25 . The agency 's chief says this brings the U.S. in compliance with world norms . Delta 's CEO says the move is n't worth the added risk to airline staff and passengers .