ICE to TSA positions

The bully is talking about stationing deportation thugs in airports to substitute for TSA agents watching exits from the secure area (to ensure no one enters through them). If that's all they do, I suppose it is safer to have them there doing that, than to have them walking around your town, jailing unauthorized immigrants, authorized visitors, authorized permanent residents, and sometimes US citizens too. And shooting protesters. But I have to wonder: if they are willing to stretch the law, can they find excuses to harass people and jail people while nominally watching an airport security exit? I'm expect the bully has looking for ways they can harass people while working there.