The Saudi Arabian textbook controversy refers to criticism of the content of school textbooks in Saudi Arabia following the September 11 attacks. Following the 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." Another work (M. H. Shakir's translation of the Holy Qur'an) in a discussion of the early Muslims attacks on the Ibn Nadhir tribe, stated: "It's allowed to demolish, burn or destroy the bastions of the Kuffar (infidels)- and all what constitutes their shield from Muslims if that was for the sake of victory for the Muslims and the defeat for the Kuffar". The American government called on Saudi Arabia to reform its educational curriculum, including textbooks in Saudi schools and distributed worldwide, by reviewing and revising educational materials and eliminating any that spread "intolerance and hatred" towards Christians and Jews and promoted holy war against "unbelievers." Some Saudis vigorously opposed changes. Saleh Al-Fawzan, the author of the textbook on monotheism and "one of the staunchest religious conservatives in the education system", wrote in a February 11, 2002 article in the Saudi newspaper Al Jazeera: "The Jews and Christians and the polytheists have shown their heartfelt hatred and try to prevent us from the true path of God. They want to change our religion and our teaching to disconnect us from Islam so they can come and occupy us with their armies. It is bad enough when it comes from the infidels, but worse when they are of our skin. They say we create parrots, but they are the real parrots repeating what our enemies say of Islam." By 2006, Senior Saudi officials assured the United States that the reform was completed, but an investigation of twelve Saudi Ministry of Education religion textbooks by the human-rights group Freedom House suggested otherwise. Saudi officials have tried to convince Washington that the educational curriculum has been reformed. On a speaking tour of American cities, the Saudi ambassador to the United States, Prince Turki bin Faisal, told audiences that the Kingdom has