Extremist Muslims are recruiting willing American blacks for violent jihad against their own fellow citizens. Fired food plant employee, Alton Nolen, a black Muslim, beheaded Colleen Hufford and stabbed another woman last week in Moore, Oklahoma, before he was shot and wounded by the company’s chief operating officer. Nolan reportedly attended a mosque headed by Suhaib Webb, an imam with ties to former al-Qaida mastermind Anwar al-Awlaki. Webb had been the leader of the Islamic Society of Greater Oklahoma City. Amazingly, Webb is head of the sister organization of the mosque attended by Boston Marathon bombers Dzhokhar and Tamerlan Tsarnaev....