We're unfortunately waiting for one of those ICE agents, on camera, to pull the trigger and kill or brutally maim someone doing nothing other than filming, or worse an innocent bystander. It doesn't seem like our political system or even high court currently have the coherence to deal with evil in less-stark terms.
(To my knowledge, there isn't a firearms proficiency requirement for ICE agents. And a basic rule of firearm safety is you don't point your gun at anything you don't eventually want to get shot.)