> they have implemented a transparent bag policy, it's a real problem.

This makes the assumption that all policies have a reasonable justification, so that the existence of a real problem can be inferred by the implementation of a policy which would only make sense if (1) there was a real problem, and (2) the policy was an effective mitigation.

I would suggest that this assumption is both false and dangerous, in that it makes one trivially manipulable by anyone in a position to set policy.