China 'testing us' across the region, Biden tells leaders at Quad summit

US president is recorded on hot mic singling out Beijing, saying it 'continues to behave aggressively' in areas including the South China Sea Joe Biden has been recorded on a hot mic telling the leaders of Australia, India and Japan that an aggressive China is "testing us", in remarks at a Quad summit that risked undercutting the group's declaration that carefully avoided referring to Beijing by name. The comments came as Biden opened a farewell summit in his home town of Wilmington, Delaware, w...