Lampley, 65, is the leader of the Oklahoma Constitutional Militia and an organization called the Universal Church of God. Last November, Lampley told the Muskogee Phoenix newspaper that he and his followers discussed blowing up ADL's Houston office because Jews and international bankers have "robbed this country until the money has no value whatsoever."

Lampley, according to the ADL, has written letters to public figures prophesying their deaths as divine retribution for corrupt ways.