There are merely degrees of piety, measures of fervor between moderate Muslims and more enthusiastic Muslims. The ideology is the same. The level of adherence is the distinguishing factor. On Friday I reported here at Atlas that a young Muslim in Pennsylvania had been arrested for supporting the Islamic State (ISIS), operating no less than 57 Twitter accounts to recruit and propagandize for the group. Now Daniel Greenfield reveals a salient detail that was left out of the mainstream media coverage: “Muslim in Pennsylvania Busted Seeking to Buy Yazidi Slave Girls,†by Daniel Greenfield, FrontPage, December 19, 2015: Slavery isn’t...