PBS NewsHour

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Professional poker player Doug Polk takes on Carnegie Mellon University’s poker-playing computer program Claudico in the opening day of the”Brains vs. Artificial Intelligence” poker competition at Rivers Casino in Pittsburgh....
The year 1915 is formed with candles during a memorial march by Armenians in front of the Brandenburg Gate after an Ecumenical service marking the 100th anniversary of the mass killings of 1.5 million Armenians by Ottoman Turkish forces, at the...
Republican presidential candidate U.S. Senator Marco Rubio (R-FL) speaks at the First in the Nation Republican Leadership Conference in Nashua, New Hampshire on April 17, 2015. Photo by Brian Snyder/ReutersTALLAHASSEE, Fla. — Marco Rubio lacks the...
Loretta Lynch is sworn in to testify before a Senate Judiciary Committee confirmation hearing on her nomination to be U.S. attorney general on Capitol Hill in Washington on Jan. 28, 2015. Photo by Kevin Lamarque/ReutersWASHINGTON — As attorney...
Blue Bell Ice Cream is seen on shelves of an Overland Park grocery store prior to being removed on April 21, 2015 in Overland Park, Kansas. Blue Bell Creameries recalled all products following Listeria contamination that caused at least 10 illnesses...
Flowers of remembrance are seen outside the home of Warren Weinstein in Rockville, Maryland April 23, 2015. American doctor Warren Weinstein and Italian aid worker Giovanni Lo Porto, who had been held hostage for several years by al Qaeda, were...