Robert Ford, the U.S. ambassador to Syria. Jewel Samad/AFP/Getty Images hide caption itoggle caption Jewel Samad/AFP/Getty Images The Two-Way U.S. Envoy Leaves Syria Due To 'Credible Threats' October 24, 2011 Ambassador Robert Ford has called attention to the Assad regime's violent crackdown on opponents. In September, his convoy was attacked. Now, there are new threats, the U.S. says, and it blames the regime.