"The power for FBI to grant itself warrants, without the need for judicial review. "Gee, let's go write ourselves a search warrant here, boys.""
There IS judicial review after the fact. Nobody wants to be the guy who wrote out a bad warrant and get slapped down by the judge afterwards--it's a career-limiting move.
I'm not impressed with the judicial slap-downs of rogue FBI agents you speak of, to date. The FBI is counting on it being easier to ask for forgiveness than permission.
Meanwhile, your rights have still been violated.
Your house has still been invaded, your computer files have been monitored, copied, and cleaned. The government has secured a list of your reading materials from the library. And the fact that the person responsible is slapped down and penalized after the fact does nothign to redress teh violations of your rights.
It would be easier to trust the Feds if they actually had an acceptable track record of punishing their own when they step out of line. Get back to me on that when Lon Horiuchi is living in a 6 x 10 concrete and steel room.