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Those agencies both monitor and retaliate against members of Congress. The NSA and CIA regulate government, not the other way around.

The NSA and CIA are both foreign focused. The FBI is internally focused within the US.

Both agencies have a long history of illegal domestic surveillance.

The NSA's warrantless surveillance program (https://en.wikipedia.org/wiki/NSA_warrantless_surveillance_(...) and the CIA's Operation CHAOS (https://en.wikipedia.org/wiki/Operation_CHAOS) are two examples of this behavior.