I'm sure this is related to security paranoia and the surveillance society that is sweeping the western world. As a libertarian-minded person (to put it mildly), I certainly support their right to have whatever rules they want on their property. But these things always feel like they are imposed upon the banks by governmental regulation, or possibly as insurance requirements (almost entirely regulated by the State). So, it feels awful to come across these things. You are being treated like the suspect of a felony, simply for doing your daily business. You are being surveilled and monitored constantly. It's absolutely the attitude of the police-state enforcers (TSA or otherwise) that is so disgusting. It wasn't, "Sir, please remove your hat it's our policy". It's a barking and commanding attitude. It's getting worse right before our eyes.