From the leaked diplomatic cables. “Donors in Saudi Arabia constitute the most significant source of funding to Sunni terrorist groups worldwide,” “More needs

From the leaked diplomatic cables. “Donors in Saudi Arabia constitute the most significant source of funding to Sunni terrorist groups worldwide,” “More needs to be done since Saudi Arabia remains a critical financial support base for al-Qaeda, the Taliban, LeT, and other terrorist groups, including Hamas, which probably raise millions of dollars annually from Saudi sources.” It's fertile ground for raising money to support terrorism not because a few bad apples support but because it enjoys broad support. Although data is somewhat scarce a survey in 2003 found that 53% supported Bin Laden for example. https://icct.nl/app/uploads/2017/02/ICCT-Schmid-Muslim-Opinion-Polls-Jan2017-1.pdf https://icct.nl/app/uploads/2017/02/ICCT-Schmid-Muslim-Opini... Page 18 Which is probably why for example US made weapons have found their way via Saudi Arabia to al-Qaeda and ISIS linked groups. https://www.aljazeera.com/news/2019/2/5/saudi-arabia-uae-gave-us-arms-to-al-qaeda-linked-groups-report https://www.aljazeera.com/news/2019/2/5/saudi-arabia-uae-gav... Basically the bad apples are in fact somewhere between a majority and a near majority and they control the country.