To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Share Embed Share URL Video File Node URL Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/66521" allowfullscreen></iframe> ‘World News’ segment tags discredited ‘hockey-stick graph’ professor Michael Mann as victim of hate groups.
