W. T. F. did the expect when they designed their official uniform off the rack at the local army surplus store.

People are trying to capture it all on their cell phones, and then they get arrested.
But some guy with a little drone can sit in his car and control it while safely out of reach. He can follow the ICE guys as they leave. He can hover right above them and make them aware they're being monitored.

Drones are nice and small and portable now. Why not deploy more of them?

He will be guaranteed due process, unlike his victims.