Top of the world Intel. Assets like Epstein/Maxwell come to mind. Robert Maxwell - connected to MI6, KGB, and Mossad. Triple agent.
Note: if Robert Maxwell also did work for the KGB, Putin would know. He was the head of KGB.
My guess about Epstein,and its only a guess, is that he had traction or was an asset to maybe a dozen or so intel agencies. I think he basically sold both knowledge,arms,drugs,anything to all of them and the people on their hit list as well. That made him both a huge target and a valuable asset as well.
I think he had to keep on the move all the time.
I also think he liked it.
The ultimate story about Epstein can only be told by two people his brother or gislaine.