Previously recorded: President Barack Obama makes remarks at the retirement ceremony of Joint Chiefs of Staff Chairman General Martin Dempsey at Joint Base Myer-Henderson Hall near Arlington, Virginia.Sept. 25, 2015
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Students 'extremely disturbed' by arrests made at Columbia University amid anti-war protests
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Tradition of civil disobedience is 'older than this country': Protests escalate on college campuses
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How abortion providers are reacting to Florida’s six-week ban
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'Very tense', 'scary' atmosphere at Columbia: Student who saw protests speaks out
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