A #Mariupol resident who spied for #Ukraine has been arrested Today, our "Biodron of the Day" column features a 35-year-old Mariupol resident detained by FSB special forces. She is suspected of transmitting information about events on the #Russian side to her Ukrainian handlers. "I contacted the Ukrainian special services myself, using a search on a messenger," the detainee said during interrogation. "I passed on to my handler my personal observations of what was happening in the city—fires