That's what the revolutionary communist "Black Liberation" movement is all about. Obama studied BLT in Wright's phony "church" for 20+ years.
"Their founding document [the Weather Underground's] called for the establishment of a "white fighting force" to be allied with the Black Liberation Movement" and other "anti-colonial" movements[1] to achieve "the destruction of US imperialism and the achievement of a classless world: world communism."..."-Berger, Dan (2006). Outlaws of America: The Weather Underground and the Politics of Solidarity. AK Press, 95.
http://en.wikipedia.org/wiki/Weatherman_Underground#cite_ref-Berger_0-0
Outlaws of America: The Weather Underground and the Politics of Solidarity (Paperback) by Dan Berger
http://www.amazon.com/Outlaws-America-Underground-Politics-Solidarity/dp/1904859410
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From the New York Times, August 24, 2003
"they [the Weather Underground] employed revolutionary jargon, advocated armed struggle and black liberation and began bombing buildings, taking responsibility for at least 20 attacks. Estimates of their number ranged at times from several dozen to several hundred."
Article: Quieter Lives for 60's Militants, but Intensity of Beliefs Hasn't Faded
http://query.nytimes.com/gst/fullpage.html?res=9F04E4DE1539F937A1575BC0A9659C8B63&sec=&spon=&pagewanted=2
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Rev. Dr. Jeremiah Wright and Dr. William Ayers
are greeted by Rebekah Levin with the Committee
for a Just Peace in Israel and Palestine.
(Chuck Berman/Chicago Tribune / May 17, 2009)
http://www.chicagotribune.com/news/local/chi-ayers_wrightmay18,0,6689521.story