As Iran and the United States negotiate with the aim of reaching a diplomatic nuclear settlement by November 24, 2014, no one can doubt the potential implications of the talks. A deal could herald a new era not just in American-Iranian relations but in the geopolitical landscape of the entire Middle East. America’s Arab allies that are still suspicious of Iran will question the wisdom of Washington’s approach to the Iranian challenge. Yet a failure to reach a deal risks the collapse of the diplomatic track in which both Washington and Tehran have greatly invested as the preferred path toward a resolution. That is why there will most likely be further extensions of the talks in the event that the November 24 deadline is missed.