Despite a major Muslim protest at the Colosseum against the closure of illegal mosques, Rome police have continued shutting down so-called “garage mosques,” and now Muslims are threatening to invade Saint Peter’s Basilica to pray there. This week, authorities closed down another makeshift mosque in Rome for failure to meet building norms and for non-compliance with safety standards, the sixth such mosque-closing in the last months.In response, Muslims in Rome have threatened to invade the Vatican to pray in Saint Peter’s Basilica, which Italian media are calling Islamic “blackmail.”“As many as 300 people can pray here; where will we go...