The CIA and NSA are already involved. The CIA in particular essentially gave the brazilian right the evidence that got our current president arrested for corruption years ago. Biden's CIA guy literally told our former president to stop questioning the elections in a public statement, even some american journalists noticed. The left constantly accused Bolsonaro of being a CIA puppet and I don't even doubt those claims. I just wonder what happened behind the curtains that soured the CIA's opinion of him.
Have you tried asking the CIA?