Protocol Supplementary to the Convention for the Suppression of Unlawful Seizure of Aircraft : message from the President of the United States, transmitting Protocol Supplementary to the Convention for the Suppression of Unlawful Seizure of Aircraft (the ''Beijing Protocol''), adopted by the International Civil Aviation Organization International Conference on Air Law (Diplomatic Conference on Aviation Security) in Beijing on September 10, 2010, and signed by the United States on that same date.