William Lai sworn in as Taiwan's new president, pledges to defend island's democracy

Taiwan's new President William Lai has pledged to defend the island's democracy, calling on China to end its military intimidation. In his inauguration speech, Mr Lai also directly addressed the threat of war. China claims Taiwan as its own and has not ruled out using force to bring it under Chinese control. Mr Lai is taking helm at a time when China's growing military assertiveness in the Taiwan Strait and elsewhere in the region has caused concerns among countries. Victoria Jen and Olivia Siong report.