Daniel C. Kurtzer has spent the last four years trying to represent the United States to Israel, two countries that think they understand each other. “I think this is the most complicated, complex and politically challenging relationship of any we have in the world,” Mr. Kurtzer said. Not only do the leaders have inevitably close relations and connections that often bypass the ambassadors in Tel Aviv and Washington, “but the other country is a key factor in the domestic politics of the other.”Full Story