(HT: @muddygravel) It should be added that the Ft Hood and San Bernardino attacks and others suggest that the line between ideological Islamism and violent jihad is fluid and rapidly crossed. The high percentage of Islamic Study Centers (mosques) in the USA that preach violent jihad (84.5%) should be considered a potential significant factor. The Saudis and well-financed groups such as the Muslim Brotherhood have funded a rapid expansion of the number of Mosques in the USA post-9/11 . . .