Your history textbooks may have you convinced he was a blind patriot and arch conservative. They were wrong. Martin Luther King was a socialist, and the following clips show him talking extensively about the need to redistribute wealth and "economic power", the right to a job, and the dignity of the working class.
Martin Luther King has been re-cast for public consumption by the very government that fought against him and made him miserable while alive.
http://www.workers.org
http://www.bailoutpeople.org
http://www.fistyouth.org