When a president who boasted he could shoot someone in central New York and still get elected meets another president who boasts he has actually killed people, and remains popular and in office, you know not to expect much on human rights. And so it proved in the much-anticipated meeting of US President Donald Trump and Philippine President Rodrigo Duterte. Over the past year and a half, many thousands - the actual numbers are hard to calculate exactly - of people have been killed in President Duterte's war on drugs, some of them children, some with only scant evidence of any connection to the drug trade.