The world sees Pakistan as the epicentre of terrorism and Islamabad should clean up its act and try to be a good neighbour, External Affairs Minister S Jaishankar said, recalling US leader Hillary Clinton's blunt message to India's neighbour that snakes in one's backyard will eventually bite those who keep them.The world sees Pakistan as the epicentre of terrorism and Islamabad should clean up its act and try to be a good neighbour, External Affairs Minister S Jaishankar said, recalling US leader Hillary Clinton's blunt message to India's neighbour that snakes in one's backyard will eventually bite those who keep them.