Regardless of whether its the CBP officer in the airport or a police officer on the street, the key friction point is that if everyone demands full exercise of

Regardless of whether its the CBP officer in the airport or a police officer on the street, the key friction point is that if everyone demands full exercise of their rights (ultimately, not to talk or interact with the officer, other than prove identity) it would be near-impossible for them to perform their function of catching criminals, terrorists, etc. Or, to put it another way, we EXPECT that people won't exercise their full rights as part of our expectation that the police and CPB officials are able to to carry out their job. Regardless of how you stand on the original issue of the OP, it's worth considering for a moment that our policing system relies, in the main, on people not up-holding their rights in order to succeed.