The Protocols of the Learned Elders of Zion.
YES, I know its poisonous sludge. But have you ever looked at it to see what makes this garbage such compelling sewage to it's adherents? First fabricated out of whole cloth in the late 19th century by a violently anti-Semitic officer in the Okrana (the Czarist secret police), the protocols have been used to justify much of the evil of the 20th century. Learn and fight.

(This link presented in the interest of providing knowledge about our adversaries. I'd recommend not straying too far onto the main site unless you have a strong stomach.)