Amazon (AMZN.O) suspended 21 air operations after a crash in Miami, the Wall Street Journal reports.

AP reported on Sept. 12 that the commander of the U.S. Army training unit in Germany said U.S. soldiers have been sent to Ukraine to study drone-warfare techniques. AP said Ukraine is employing drone tactics against Russia, and as the U.S. seeks to integrate drone capabilities and tactics into its own forces, U.S.-Ukrainian military cooperation has tightened. AP visited a U.S. training site in Germany and observed exercises to see how the U.S. is cooperating with and learning from Ukraine.

美国总统特朗普：（被问及人工智能行业是否应放缓发展步伐时表示）谁赢得人工智能，谁就赢得未来。