Saudi Arabian textbook controversy
Following the September 11 attacks attacks and the revelation that the leader of the organization (Osama bin Laden) and 15 of the 19 hijackers involved in the attacks, were Saudis, concern was expressed in the U.S. over "what role" the Saudi educational system "played in shaping the beliefs of Osama bin Laden's followers". Among the passages found in one 10th-grade Saudi textbook on Monotheism included: "The Hour will not come until Muslims will fight the Jews, and Muslims will kill all the Jews." This was a reference to volume four of Sahih Hadith Bukhari 52:177.
Source: Wikipedia — Saudi Arabian textbook controversy (CC BY-SA 4.0)