The Martin Luther King Memorial is dedicated this weekend.
Here's a PDF of some of Martin Luther King's often overlooked statements such as "When machines and computers, profit motives and property rights are considered more important than people, the giant triplets of racism, militarism and economic exploitation are incapable of being conquered." People can pass this out at the occupy protests and other events in DC and elsewhere:
https://docs.google.com/document/d/1sFCg3RkPJMUXSmSRl7ayiAUI9gcbAQrTogL8qgdr6po/edit?hl=en_US
Martin Luther King Jr. from his “Beyond Vietnam — A Time to Break Silence” address, delivered at Riverside Church in New York City on April 4, 1967, a year to the day before his assassination — full audio and text.
His sermon later that month, in which he responded to the mainstream attack: "Why I Am Opposed to the War in Vietnam" -- excerpts on youtube. (Note that audio can be streamed through many phones and amplified through a bullhorn.)