7pm HISTORY DETECTIVES
A raid on the federal armory in Harpers Ferry and a Ronald McDonald costume are investigated.
8pm FRONTLINE - WIKISECRETS
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Julian Assange is interviewed in this look at the 2010 leak of classified documents on Wikileaks.9pm P.O.V. - SWEETGRASS
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The last modern-day cowboys lead their sheep up into the breathtaking mountains of Montana.