Occupation of Alcatraz
A lingering sign of the 1969-71 American Indian occupation of Alcatraz; above a federal sign reading "UNITED STATES PENITENTIARY: ONLY GOVERNMENT BOATS PERMITTED..." the words "INDIANS WELCOME" are painted in red.
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"Occupation of Alcatraz."
http://en.wikipedia.org/wiki/Occupation_of_Alcatraz
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