The leadership does not believe in the Founding Fathers or the Constitution in the way Americans would like. At best they see it as a set of rules made by people just like themselves that they can adjust and change to meet the needs of the times. And that usually entails more control over the ever out of control masses, according to their perceptions.

The NSA or analogue in the late 1700s in the time of the Founding Fathers would probably lead to a revolution. The NSA of today is common news and no one cares that someone is always listening, not might be but is (it's being recorded somewhere), to everything they type or do and might share that with people who are literally out to get you if it's convenient to do so.

Ultimately this is to create a further atmosphere of fear, anxiety, and paranoia about anything you might do or say that could come back to haunt you later... to protect the government's fear, anxiety, and paranoia that the citizens are always doing something wrong and need to be found out.

Nefarious plans are always being hatched that can be prevented if the right agency just knew what everyone was doing at all times. And the specter of the panopticon keeps everyone from even contemplating doing anything wrong.

And maybe they are not wrong. But I hate living in a paranoid world like that, which can make people mentally ill if they think about it too much. The scene from the Simpson where Bart is on Focusyn comes to mind.