The open extremists operating in the Democratic Party's midst. It turns out the man arrested for running a Muslim terrorist training compound in rural New Mexico is the son of an influential Democrat-connected jihadist imam who was close to the Blind Sheikh who orchestrated the bombing of the World Trade Center in 1993 that left six people dead. Siraj Ibn Wahhaj Jr., who is 39 or 40, of Clayton County, Ga., was arrested after authorities found 11 hungry, filthy children living in squalid conditions in a remote part of New Mexico. Wahhaj, who has been charged with felony child abuse,...