What’s the deal with converts to Islam? Last April, a teenager in Coeur d’Alene, Idaho, named Alexander Scott Mercurio was caught plotting jihad massacres in local churches, “using weapons, including knives, firearms, and fire.” On New Year’s Eve in 2022, a 19-year-old named Trevor Bickford traveled from his home in Wells, Maine, to Times Square, where he attacked three NYPD officers with a machete. In April 2021, a Zion, Illinois, man named Edward Schimenti got thirteen and a half years in prison for aiding the Islamic State (ISIS). These are just three men who are on a long and ever-lengthening...