The FBI did investigate MJ. How extensive was their investigation, we do not know. It was not a Muller scale investigation, but it would stupid to assume it was superficial as the hater would like everyone to believe. Their agents were sent abroad. Gave public comments. participated in TV shows, but now the haters want to diminish the role played by the FBI in investigating mj. We know that a large portion of his file remain under seal and the part that was released was heavily redacted. We also know for a fact that they did not release to the defence the exonerating evidence they unrecovered in 2004. They withheld from the defence the fact that they searched the 7 computers they seized from Neverland for key words such as 'gay' among others and found absolutely nothing. That's key because Sneddon and Zonan told the jurors mj was a homosexual. They introduced a study book on men's sexuality which contained material on homosexuality as evidence of his sexual orientation. Also, while the Arvisoz claimed all the abuse took place in California, Chandler claimed it happened in multiple states as well as abroad. Sneddon has no jurisdiction to prosecute MJ for crimes committed outside Santa Barbara. That's why both LA and Santa Barbara DAs were investigating MJ in 1993. The Fed must have been involved because the alleged crime occurred in different states and abroad. The FED spy on whoever they want to spy on and don't expect they will confirm this in writing because this is crucial to them and is not even a secret. MJ was of interest to them and he was under their radar. We may need to wait for a long time to know what did they do in relation to him.