I think the "Epstien was a spy for other nation's" is simply a smoke screen being created to smoke up the room.
In another thought - If Epstien had an actual pedo island being run for sick twisted old men, then don't you think that justice would find a way to get to the bottom of it no matter what or who was involved ?
Where are the witnesses or abused that should have come forward by now, and especially after Epstiens death, otherwise not fearful of coming forward because the kingpin himself was dead, and Maxwell is imprisoned ??? Where are they ?
Are they fearful of the powerful men that are still free, and therefore could easily retaliate if they even thought about speaking up ?
The best rule in any civilized system is the Barney Fiffe rule, and that is to "NIP IT, yes NIP it in the BUD Andy, otherwise recognize it and stop it before it ever gets started. Preventing such things in a very strict way is key to operating a civilized society, but Houston we have a serious problem in allowing the glorification by hollyweird of these types of thing's to be tolerated enough that the next thing ya know, it is that bad ends up taking hold to a society, and then the society not wanting to get it straight after being overwhelmed by it all.