They learned from Boston that they can get away with it. Wait until the first LEO gets shot, regrettably. Then they will need to ratchet up another step, to keep us all safe.
Yep! This is all pattern testing and acclimation of tyranny. It's another incremental step. They tell you "it's for your safety," but over time, their presence grows to the point of consistency. They wall off neighborhoods, setup bulletproof checkpoints. Voila! Welcome to your ghetto. Your extermination number is 155. Please stand in line for your shower.