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PBS News Hour
The role of media and technology after terror attacks
The gunman accused of killing 49 people at two New Zealand mosques Friday live-streamed the attack, emailed his manifesto to media outlets, and shared his racist and hateful messages online. Charlie Warzel, opinion writer-at-large for The New York Times and Joan Donovan of Harvard University join Hari Sreenivasan to discuss changing technology and the media's role and responsibilities.
