The Spy Paragraph

S1 E6: Arne Treholt is caught and convicted. But, as this fascinating documentary concludes, questions still remain. Was it sufficiently proven that he passed information on to the KGB that endangered Norway's security? Was there enough evidence to prove Treholt was a spy and deserved a life sentence? Is it possible, 40 years later, to find out why the authorities in the Kremlin valued Treholt?