We need a modern day equivalent of the Church committee, but it won’t happen, because Congress let the intelligence agencies run wild enough that they have blackmail on everyone in Congress by now.
Given those most in Congress are corrupt and were in on the conspiracy against Trump, you are right in that such a thing as the Church committee can’t happen these days.
Just a note: This video is a hour and a half long and the best way to listen to it is put it on in the background and listen to it as you do other stuff. If something new and previously unknown catches your ear, you can back it up and listen to it again.