Just had it on Thursday on United 900 from San Francisco to Frankfurt. Both the TSA AND CBP were in action. The CBP was checking passports and asking questions about their travels. The TSA had a private screening booth set up for its own selectees.

Boarding was nightmarish, hot, and crowded. And I'm sure that they caught many evildoers. Good job, fellas! Our flight was delayed on the ground by what the captain described as "an airport procedure we have here."

I know I was "acting out," but I paid no eye contact to the CBP officer and snapped my passport back from him. In retrospect, a bad idea. But I had just waited forever in the 1K/First Class security line, and I had no interest further "security" procedures. At least the TSA was busy troubling someone else on the jetway, so I didn't undergo any bag or body inspections.

Incidentally, the gate areas for international departures are quite large. Why do all of this on a hot, crowded jetway. They could have taken care of passport inspections while everyone was lined up to board the flight.