ROME – The only thing to lament about the agreement reached by Iran and the P5+1 (the UN Security Council’s five permanent members – China, Britain, France, Russia, and the United States – plus Germany) in Vienna this month is that it was not signed and sealed a decade ago. In the years that it has taken for diplomatic sanity to prevail, the Middle East has endured myriad avoidable tensions and lost opportunities for security cooperation.