Change! Now, these diplomatic efforts have also strengthened our hand in dealing with those nations that insist on violating international agreements in pursuit of nuclear weapons. That’s why North Korea now faces increased isolation, and stronger sanctions ““- sanctions that are being vigorously enforced. That’s why the international community is more united, and the Islamic Republic of Iran is more isolated. And as Iran’s leaders continue to ignore their obligations, there should be no doubt: They, too, will face growing...