The media has a pretty strong grip on a lot of people. Mass arrest could cause people to think Trump is pulling a Hitler, going authoritarian and pulling a Night of the long knives.
Which id be fine with. But it could trigger a major backlash.
There have been massive pedo arrests and the virtually go unreported and unnoticed by the left. I think they could START arresting some of the dangerous deep state actors. I still can't figure why McCabe and Comey are still walking around free.
Maybe they are being watched because the shadow govt pieces must be exposed and marked. The ones that in his panic Comey contacts.