Sometime in the next few weeks, if the parties can agree on a place and date convenient to all sides, Iran and the permanent members of the U.N. Security Council plus Germany, known as the “P5+1,” will meet for the first time since October 2009 to revive diplomacy over Iran’s nuclear program. This is welcome news for U.S. President Barack Obama who, almost two years into his first term, has learned the hard way that diplomacy with Iran is neither quick nor easy.
