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/64068" allowfullscreen></iframe> MSNBC's Rachel Maddow will host a special on April 19 about the danger posed by "anti-government extremism" and connect it to the terrorism of Timothy McVeigh.