Riyadh, SAUDI ARABIA:  Saudi boys stand in line as a teacher takes the attendance on their first day back to school in Riyadh 09 September 2006. Five years after the September 11 attacks, US accusations, claiming the Muslim kingdom's education system is fostering Islamic extremism, continue. Saudi schoolbooks have lately been accused of promoting intolerance of not just non-Muslims, but also of Islamic sects other than the purist Sunni Salafi school from which the Wahhabi doctrine dominant in Saudi Arabia is derived. AFP PHOTO/STR  (Photo credit should read STR/AFP/Getty Images)