The FBI, CIA, DHS, and other 3 letter agencies have mission creeped well beyond their original purviews and have become so corrupt to the point of being unsalvageable.
All these agencies have a proven history of being Anti-American, targeting US citizens for lawfare, social experiments, and medical experiments.
They must all be purged and what absolutely necessary functions they do have be instated in a single, streamlined agency that has better oversight, ideally from the Executive and Judicial branches.