25 years of stricter security: How 9/11 changed the way we fly

Twenty-five years after 9/11, aviation security remains fundamentally transformed. Aircraft were hardened with bulletproof doors, and flight crews received defense training. Currently, a union representing 47,000 Transportation Security Administration workers is suing the TSA over TSA Gold+. This Trump administration program seeks to expand the privatization of airport security screening through public-private partnerships. The union alleges that the initiative to allow airports to hire outside contractors occurred without formal disclosure or their direct involvement.