They have tended to stay within their preferred domains: print, motion, web and mobile.

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King: A Filmed Record, Montgomery to Memphis (January 17), the landmark 1970 documentary directed by Sidney Lumet and Joseph Mankiewicz, combining vivid archival footage of Dr. King and the events of the civil rights movement with interviews and testimonials filmed after his death, shown in a 35mm archival print from the Academy of Motion Picture Arts and Sciences in honor of Martin Luther King, Jr.

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One of the great joys particular to social media, as opposed to say TV or print, is that you can watch this army in motion because you have access to most of the same information they do, specifically that most defining feature of social media, the numbers.

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