i knew someone in the early 90's who personally was at one of these parties and refused to come forward. people who try to bring this public, with no back up tend to die. i could tell you what he told me, it was horror upon horror, and happened when reagan was in office, but i don't want to cloud the issue with hearsay, when there seems to be actual evidence.
this is not just a global scale ring, but has existed since at least the 80's, probably longer.
video: www.youtube.com
3 minutes into the video... yup, he hit the nail on the head - "corrupting key positions of government". It's much easier to compromise a president with blackmail then it is to become president.
Thanks for the link.