'Utterly unnecessary': Donald Trump slammed for provoking tensions with China

By Nick O'Malley, Kirsty Needham
Updated December 4 2016 - 9:08am, first published 8:09am

A diplomatically explosive phone call between president-elect Donald Trump and the president of Taiwan risks provoking a cold war between the United States and China with potentially catastrophic economic and security implications for the region and the world, according to former Australian foreign minister Bob Carr.