You know the Caduceus, two snakes wrapped around a wing-topped staff, often associated with medicine? Well, Mike Adams of NaturalNews.com has done a "the pyramid with a floating eye is a sign of the Conspiracy" type analysis of the Caduceus. Y'see, the Caduceus is the symbol of Hermes, who is the god of liars and thieves, plus the snake is associated with evil because of the story of the Fall from Eden, so the Caduceus symbol subconsciously indoctrinates medical students into being evil, thieving liars. (Which totally ignores the fact that the actual symbol of doctors is the Rod of Asclepius, the god of medicine, and we only now associate the Caduceus with medicine because the 19th century U.S. army confused the two symbols)
Also, one of the sources that he uses to support his argument is David Icke, who claims that the world is secretly ruled by reptilian humanoids. Good times, good times.