Doubly so when they're prison riot control officers who all look like they're clones of Byron Hadley, The Screw Everyone Hates from "Shawshank Redemption".
When a prison guard sees a crowd chanting protests, they are going to react very badly.
Get them out.
And get badges on the rest of them. Then get them out, too.
Well, I doubt they have better options avail. I doubt active soldiers trained to kill as fast as possible would be any better. Let's be honest, they cannot let major buildings and institutions in DC get overrun...