Earlier quoted context omitted.
I get that this answer might seem overly terse, but there are a group of unnamed prisoners in Guantanamo Bay sitting there, not getting the benefit of due process that they are obligated. Under the NDAA, the president has the authority to enshrine anyone he wishes, subject to zero oversight, to a similar fate. Under the PATRIOT Act, we've bombed American Citizens suspected of possibly committing a crime in the future…
So no one, then?
That doesn't mean it's okay. Think about what's going on here. The USA has basically created for itself a secret police with powers that, in practise, are very close to those of an agency like the KGB or the Stasi. Sure, as you point out, these new powers are not being used to cart people away wholesale. But you should still be very nervous.
Even now, we might be past the point of no return. That's not just hyperbole on my part. The way I see it, it's very easy to get into in a kind of ratchet situation where powers and abuses can only increase over time. We may already be there. It's politically very difficult to reduce powers for any agency, let one that pushes both military and law enforcement buttons. Even if calls for reform get taken seriously, they may be dealt with by sacrificing a scapegoat and making superficial changes. Even if there was a strong serious concerted political effort to reform the NSA and CIA do you really trust them not to interfere with it? Do you strongly believe, without any doubt, that the NSA and CIA are above blackmailing their own politicians?