It probably does happen. We know about the "parallel construction" thing, telling us that regular law enforcement is seeing some of the gathered data. And they

It probably does happen. We know about the "parallel construction" thing, telling us that regular law enforcement is seeing some of the gathered data. And they may be acting prejudicially. But this isn't related to the surveillance thing as such. Criticism of this racism, if it exists, should be targeted at some combination of the prejudice in the police agencies, the leaking of the data that's supposed to be locked in a vault, and at a stretch, the lopsided impact of the laws on various racial groups.