If you have absolutely no idea of what the Illuminati (or at least, the idea of Illuminati I'm using) is, here.
Clink the link, read, then return here. If you do have at least a vague idea, then please, skip ahead.
Pretty much the "Hand" is how the Illuminati extends their influence when money and power fails. Assassins, hit men, special forces-like teams, etc. Whatever. You name it, they've got it. (Yes, this includes killer robot unicorns.)
I'll definitely flesh this out once I know somebody's interested. Until then... type your mind.