Reason contributor Paul Karl Lukacs describes a recent experiment in asserting his right to remain silent at the San Francisco International Airport:

"Why were you in China?" asked the passport control officer, a woman with the appearance and disposition of a prison matron.

"None of your business," I said.

Her eyes widened in disbelief.

"Excuse me?" she asked.

"I'm not going to be interrogated as a pre-condition of re-entering my own country," I said.

This did not go over well. She asked a series of questions, such as how long I had been in China, whether I was there on personal business or commercial business, etc. I stood silently. She said that her questions were mandated by Congress and that I should complain to Congress instead of refusing to cooperate with her.

She asked me to take one of my small bags off her counter. I complied.

She picked up the phone and told someone I "was refusing to cooperate at all." This was incorrect. I had presented her with proof of citizenship (a U.S. passport) and had moved the bag when she asked. What I was refusing to do was answer her questions.