How do you run a crime organization that big and that out in the open (communicating openly via email, which not even the biggest drug cartels dare to do) without getting taken down by the various intelligence agencies of the world, even avoiding the U.S. federal law enforcement for the longest time?

There is one answer: Epstein was protected by state forces, not that of U.S. but of its closest "ally" (more like master at this point).

Not that they need it that much today, anyway. AIPAC sponsors almost all of U.S. congress, check out how much your congressmen and women received from AIPAC here: https://www.trackaipac.com/congress