On the day after Pope Francis spoke to Congress about the dangers of violent extremism in the name of religious fundamentalism, presidential candidate Ted Cruz, appearing at a Values Voter summit, threatened to murder Iranian Ayatollah Ali Khamenei. The Texas senator vowed that, if elected, he would “rip to shreds” the Iranian agreement deal recently passed through Congress, and kill the country’s leader if it didn’t give up its nuclear ambitions. “If the Ayatollah doesn’t understand that, we may have to help introduce him to the 72 virgins,” Cruz said to wild cheers from the audience of conservative Christians. The...