By Glenn Diesen, Professor at the University of South-Eastern Norway and an editor at the Russia in Global Affairs journal. Follow him on Twitter @glenn_diesen . RT: The Ukrainian language channel of US state-run broadcaster RFERL is making a concerted effort to rehabilitate the life and legacy of WWII-era Nazi collaborator Stepan Bandera, widely held by historians to have been a war criminal. A video posted by the broadcaster, registered as a “foreign agent” in Russia, earlier this month argued that Ukrainians are deeply divided about whether the wartime leader was a hero or a villain – while leaning heavily...