Watch Russian opposition politician Vladimir Kara-Murza’s candid, full interview on Putin and allegations of Russian interference in the 2016 U.S. election – all part of "The Putin Files", FRONTLINE's media transparency project. Explore kara-Murza's full interview and interactive transcript here: https://www.pbs.org/wgbh/frontline/interview/vladimir-kara-murza/ Explore the complete "Putin File" experience here: http://www.pbs.org/wgbh/frontline/interview-collection/the-putin-files/