However, Iraq's security forces had "complete recordings of most of the meetings and interviews that took place," foiling the plot, expelling the Iranian ambassador to Iraq, and executing "at least 33 conspirators" by January 23.[85] On January 24, Iraq announced its support for Kurdish autonomy, and on March 11, Saddam and Barzani reached an agreement (dubbed the "March Accord") "to recognize the binational character of Iraq ... [and] allow for the establishment of a self-governing region of Kurdistan," which was to be implemented by March 1974, although U.S. officials were skeptical that the agreement would prove binding.[86]