system
Given the following post, respond as if you're commenting on Reddit:
human
[DC Comics] Why isn’t Joker being tortured at some off-the-books CIA black site?

Or Guantanamo Bay, something like that.

Yeah, yeah, he claims insanity. How have higher-ups in the federal government not decided “Hey, maybe we should take this guy away from the city where he’s the biggest threat, and either find out what he’s planning next or just remove him from the picture.”?
gpt
Every time you move a contained Joker you introduce a point of failure. 

For every point of failure you introduce into the equation you have to do so understanding that death or serious injury will occur. Are you going to be able to sleep at night after seeing Sgt. Johnson's eyes get gouged out because he left his ball point pen tucked above his ear? What about when Joker's gang blows up Lt. Jefferson's daughter in Gotham Square because a crooked cop leaked some documents showing that he's the transporting officer. 

It's fear. Real, human fear that prevents significant progress on Joker most times. In truth the best way to do it is to punch his ticket to hell with a hollow point but we all know the bat won't let that stand.