Russia's War Against UkraineUNIAN: SBU chief says level of terrorist threat for Ukrainians highest since independenceBy UNIAN. Published March 10, 2018 at 9:16 am Ukraine's SBU security service chief Vasyl Hrytsak speaks to media during a press conference in Kyiv on June 6, 2016. Photo by AFPCriminal activity of Ruban’s group has been documented by the SBU for a long time.Read more here.