Some Agencies are fine. I don't mind the FBI (for the most part, I LOVE my friends & colleagues in the rank & file, not so much the DC politicos) and the CIA & various military Intel Agencies are vital, but many have been infiltrated & subverted since the Church Committee.
I was at ONI (Office of Naval Intelligence) for 4 years & loved it & still keep in touch with my mentor from there. We play "Go" over the email and telephone. ONI is America's first Intel Agency founded in March, 1882 & served honorably since.
ONI was the last refuge of Angletonian Intelligencers after "Perestroika." The last place analysts knew that Russia was lying & could talk about it amongst themselves & keep an eye on Yeltsin & Putin & what they were up to.
We distrusted the security apparatus within CIA so much that we wouldn't let CIA officers anywhere in our building without an armed Marine escort regardless of their clearance level. We were the only agency allowed to maintain an internal full CI apparatus after Church in 1975.
