[conservative in nyc]

It would require time and effort, but people could mail a set of their medicine ahead to their final destination.

Which possibly violates various national laws about shipping prescription drugs, and isn't practicable - do you postpone your trip because you don't know whether the package made it?

The policy doesn't make sense and will be revised. It isn't difficult for smart folks to claim that they need more prescription medicine on the flight than they really do, anyway.

[The Red Zone]

Until the label is read. "Take 2 at bedtime... well sir you don't need it. Check it or toss it."