"Some folks ended up being "delayed", but they weren't exactly in dungeons."
LOL. Look who's an apologist for Lincoln's suspension of habeas corpus. What were those folks in then, exactly?
When Governments are threatened, they react --- it's as simple as that. I lived through martial law for a week, (the suspension of HC) back in the 60s when their were riots in the wake of King's murder. It wasn't nice to see armed troops on the streets, to have curfues, and to know you could be thrown in the pokey for looking funny, but order was restored, the city was not burned to the ground, HC was restored, and no one, other than the rioters and arsonists, was the worse for the wear.