PBS News Hour S42 E09 January 12, 2017

Thursday on the NewsHour, Gen. James Mattis delivers a stern warning about Russia during his confirmation hearings. Also, we analyze the threat Russia poses to the U.S., Mattis and Pompeo differ on the Iran nuclear deal, how a senior Obama adviser views the president’s record, considering Obama’s economic legacy, art full of contradiction and a classical pianist on her music’s ‘golden time.’