Chinese dissident artist Ai Weiwei protests possible extradition of Julian Assange in LondonHealth Ministry admits failings in handling contracts it awarded to firm with links to Peeni HenareIowa caucuses: What Trump's dominant win means for his rivalsMysterious 'Big Ring' found in space 'must surely be telling us something'Tauranga bars to close earlier under booze rule changesChina and India hold talks over Ladakh border standoffWaymo's robotaxi service expands into Los Angeles, starting free rides in parts of the cityTraffic updates: Easter weekend set to beginRelease of kiwi into Te PapaTrump hawks $399 branded shoes at Sneaker Con, a day after a $355 million ruling against him