Friday Nite Videos -- September 2, 2016
Portside
Reinforcements arrive as Native Americans protest a massive oil pipeline in North Dakota.
Lawrence O'Donnell explains why a protest by Native Americans in North Dakota reminds us of the history America always tries to forget.
Seven centuries ago, an entire society performed one of the greatest vanishing acts in human history when they fled their homes in the American Southwest. Archaeologists are trying to work out why they left.
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