Primary Outlet: Sun News Network (Canada)Broadcast Date: Sunday, April 21, 2013 - 1:52pmBroadcast Type: interviewBroadcast Format: televisionScholar: Shapiro, IlyaSubjects: the Boston Marathon attacksResearch Area: Foreign Policy and National SecurityLink: http://www.cato.org/multimedia/media-highlights-tv/ilya-shapiro-discusses-boston…