Ayman al-Zawahiri, Leader, January 2009

"Thwart the efforts of these traitors by striking the interests of the enemies of Islam - namely, the Christian and the Jews - wherever and by whatever means you can… [T]he biggest threat to Islam is the Crusader/Zionist assault and its agents, the apostate rulers…we endorse every operation against Jewish interests."“Ayman al-Zawahiri: In His Own Words,” Anti-Defamation League, July 16, 2009, http://archive.adl.org/main_terrorism/ayman+al-zawahiri250d-2.html#.U469h5RdXMc.