Just a suspicion - definitely no knowledge!
In that light, I would say that the best of the best is a group you have never heard of but really want at the point when the excrement hits the air circulating device! "As George Orwell pointed out, people sleep peacefully in their beds at night only because rough men stand ready to do violence on their behalf." [Richard Grenier - 1993 Washington Times]
http://www.liveleak.com/view?i=954_1392065643
30 seconds.