Following a day of meetings with high-ranking Chinese officials including Chinese President Xi Jinping, US Secretary of State Antony Blinken hails Beijing-Washington cooperation on artificial intelligence whilst urging Beijing to do more on on issues such as clamping down on the fentanyl trade and curbing its "dangerous actions" towards the Philippines in the South China Sea. Blinken is in China for the second time in less than a year as the two sides press for headway on a range of concerns. IMAGES AND SOUNDBITES