Apple CEO Tim Cook has called for a campaign against fake news. Its purveyors — largely interested only in getting the most clicks — are defeating the people who are trying to tell the most truth, he said. Fake news is “killing people’s minds in a way,” Cook remarked. The worldwide epidemic of fake news requires a crackdown by both government and tech, he suggested, but care must be taken not to step on the freedoms of speech and the press. Cook suggested the impact of fake news could be curbed by a massive public service campaign.