The Nuclear Shadow over Karachi by Pervez Hoodbhoy, Zia Mian and A. H. Nayyar March 17, 2014 by Pervez Hoodbhoy, Zia Mian and A. H. Nayyar March 17, 2014 Untested Chinese nuclear technology could imperil the city of 20 million. 1 FacebookTwitterRedditWhatsappEmail