"Your response to this dilemma may vary according to your risk assessment. However, all travelers should stay calm and respectful, should not lie to border agents or physically obstruct them, and should plan for this dilemma ahead of time. Try to document or politely ask for the names, badge numbers, and agencies of the government officers you interact with."<p>I don't mean to be churlish but this advice is pretty weak sauce. I mean, I understand why they don't want necessarily want to admit the truth, that if you're a foreign national and you don't comply things will get nasty and you'll almost certainly be deported.<p>However, that sadly seems to be the truth of Trump's TSA, and if the truth stinks, don't sugar coat it.