The United States and Canada are dialling down their diatribe over the alleged New Delhi hand in the killing of Sikh pro-Khalistan extremist Hardeep Singh Nijjar amid a strong pushback from India about the “operating space” given to violent militants due to domestic political compulsions.The United States and Canada are dialling down their diatribe over the alleged New Delhi hand in the killing of Sikh pro-Khalistan extremist Hardeep Singh Nijjar amid a strong pushback from India about the “operating space” given to violent militants due to domestic political compulsions.