Now that Donald Trump has secured his position as the Republican candidate for the American presidency, leaders around the globe have begun to worry. Can they Trump-proof their countries? In Australia, concerned government officials are turning to one man for advice.

Mike Green is an expert on American policy in Asia, who worked in the George W Bush administration. So, what challenges could Trump pose for us? And how could we best combat them?

Today, international and political editor, Peter Hartcher, on what Mike Green says we should, and shouldn’t, be worried about. And what the silver lining of a Donald Trump presidency might be.