The very evening I wrote about William F. Buckley, Jr.'s incidental review of Mary Habeck's Knowing the Enemy: Jihadist Ideology and the War on Terror, I stopped by the local library to borrow a copy of Habeck's book. After an hour of reading it was apparent to me that meaningful commentary would require review of additional material. So, having just finished Knowing the Enemy — yes, I am a desultory book reader — I shall move to the other corresponding texts. An article should be composed and published by the beginning of next week.