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BREAKING: NYPD officers in riot gear enter Columbia University as students occupy Hamilton Hall

Today in Pictures : September 23

See the best news photos from Wednesday
Image: Pope Francis receives a kiss, outside the Apostolic Nunciature to the United States on September 23, 2015 in Washington, DC.
Pope Francis receives a kiss, outside the Apostolic Nunciature to the United States on September 23, 2015 in Washington, DC.MOLLY RILEY / AFP - Getty Images