The State Department reacted angrily to the appearance of UN Ambassador Zalmay Khalilzad on a panel at the Davos Economic Forum, along with two members of the Iranian government. The US restricts diplomatic contacts with Iran and requires prior approval for any such interaction. Apparently, Khalilzad took it upon himself to make that decision: An appearance by America's U.N. ambassador, Zalmay Khalilzad, on a World Economic Forum discussion panel — alongside two Iranian officials, Foreign Minister Manouchehr Mottaki, and a close aide to President Ahmadinejad, Samare Hashemi — was unauthorized by the State Department and angered Secretary of State Rice,...