The threat the TSA is trying to address is preventing someone from converting a plane into a cruise missile.
That is not possible to do that on the commercial side not because anything TSA does but because of the reinforced cockpit doors and because passengers would fight back.
Anyone with a $15k limit on a credit card can call NetJets and order up a jet which they can load up with as much explosives as the plane can carry. Yet another reason everything TSA does is theater - it does nothing to prevent another 9/11 style attack.
That is not possible to do that on the commercial side not because anything TSA does but because of the reinforced cockpit doors and because passengers would fight back.
Anyone with a $15k limit on a credit card can call NetJets and order up a jet which they can load up with as much explosives as the plane can carry. Yet another reason everything TSA does is theater - it does nothing to prevent another 9/11 style attack.