The FBI can be like anyone else.
Hell, we found out that priests are capable of pretty bad things, too.
But if I have to choose Osama running around training guys to fly airplanes and the FBI, I am going to pick the FBI.
As far as the fraudulent prosecution, my answer is simple: hold either side criminally responsible if their side stages a provable fraud. And go after any witnesses that engage in the same.
Reno would still be getting her ass out of jail for what she did with fabricated child abuse charges inDade County, for instance.
Ed