"The theory behind the lawsuit against the Saudis goes back to the 1991 Gulf War. The presence of American troops in Saudi Arabia was a shattering event in the country’s history, calling into question the ancient bargain between the royal family and the Wahhabi clerics, whose blessing allows the Saud family to rule. In 1992, a group of the country’s most prominent religious leaders issued the Memorandum of Advice, which implicitly threatened a clerical coup. The royal family, shaken by the threat to its rule, accommodated most of the clerics’ demands, giving them more control over Saudi society. One of their directives called for the creation of a Ministry of Islamic Affairs, which would be given offices in Saudi embassies and consulates. As the journalist Philip Shenon writes, citing John Lehman, the former Secretary of the Navy and a 9/11 commissioner, “it was well-known in intelligence circles that the Islamic affairs office functioned as the Saudis’ ‘fifth column’ in support of Muslim extremists.”"