The new President of the Philippines, Rodrigo Duterte, is in the news this week because he's threatening to send home some of America's troops and "re-orientate" his country's foreign policy away from its traditional ally, America. And last week he was reported to have called President Obama a "son of a whore". Not surprisingly, perhaps, he has caught the attention of the world's media. But human rights organisations have been paying close attention to Mr Duterte for other reasons: he is alleged to have been complicit in the killing of drug dealers and criminals by vigilante ‘death squads’.

Presenter: Edward Stourton