I've been reading Tim Weiner's Enemies, a history of the FBI and one thing stuck with me. That was that there was a period of time when the FBI was incredibly useless because of a previous Supreme Court ruling that wiretapping was illegal and then FBI agents all began to misunderstand what they could and couldn't do. That lead to a breakdown in communication and procedure between different offices and several terrorists that could have been caught slipped by.
I'm not saying that Brand is right, but there is reason to worry that this could happen again. What needs to be done is a clear declaration of our fundamental rights and a watchdog court that won't let the agencies overstep in their pursuit of justice. The agents have to know their boundaries, we have to know their boundaries, and we have to know that they know their boundaries. The whole FISA court stuff is ridiculous.