Kotarski: Is Bradley Manning a whistle-blower or a traitor? By: Kris Kotarski , / 2 August, 2013 By: Kris Kotarski Columnist for the Calgary Herald Kotarski: Should a state ever consider negotiating with terrorist organizations? And if so, under what circumstances? Kotarski: What impact has Nelson Mandela had on your life? Kotarski: Are criticisms of the preliminary nuclear accord with Iran prescient or paranoid? A whistleblower. And a very brave one at that.