TODAY: Putin visits Arctic, orders military to protects its $30 trillion of interests there; ECHR investigating legality of “foreign agents” law; Investigative Committee opens criminal case into Voronenkov murder; Medvedev corruption claims may have cost him political future; director calls for more protests, warns Kremlin against warring with its youth; protester says she was threatened into saying she was paid to attend rally; military Kindergarten training.