"I wonder if I was a CBP officer how would I behave if I didn't want to be the officer who allowed a terrorist into the US who manages to succeed with some plot

"I wonder if I was a CBP officer how would I behave if I didn't want to be the officer who allowed a terrorist into the US who manages to succeed with some plot." Well, how about having solid reasons for detaining someone, something better than "Who takes a coat to the U.S. in the summer?" And speaking about attitude, be polite at least until you have enough incriminating evidence! Just to offer an example from the article itself - shouting at the drug-smuggler was OK in my book, whereas "what the hell were you doing in Yemen" was not.