Russia says more than 1,700 Ukrainian fighters have surrendered from their stronghold at the Azovstal steel plant in Mariupol, as international concerns mount over the soldiers' fate in Russian hands. US President Joe Biden makes his first presidential trip to Asia, where China's growing influence looms large. And disinformation expert Nina Jankowicz steps down from her post at the helm of a newly formed government board after becoming a target of... disinformation.