Former president A P J Abdul Kalam has advocated a zero tolerance attitude towards terror. Delivering the RN Kao memorial annual lecture at the Research and Analysis Wing of the cabinet secretariat on Thursday evening, the nation's missile man suggested that India can adopt 'never forget and never forgive' attitude of the US and Israel in tracking terrorists and went ahead to add that the three countries come together with an integrated task force to defeat their threats. Kalam said the experience of the US and Israel in cooperating with each other on real time basis in countering threats from terror groups has helped in saving the lives of their people.'It is advisable for democratic countries of the USA, Israel and India to come together with an integrated task force to effectively,’ he said.