PoliticsRussiaVladimir PutinRethinking Putin: A Talk by Professor Stephen F. CohenRethinking Putin: A Talk by Professor Stephen F. CohenDelivered on the annual Nation cruise, December 2, 2017. By Stephen F. Cohen January 16, 2018 fb tw mail Print msg wa sms Stephen F. Cohen speaks aboard the Nation cruise, December 2, 2017, introduced by Nation Editor and Publisher Katrina vanden Heuvel.