I wrote Ambassador Anatoly Dobrynin about this case. I never received an answer to that letter. or to others I signed with my colleagues about Mendelevich. Now. the release of Iosef Mendelevich and the reported moderate increases in the number of exit visas being granted to Soviet Jews may be a most positive sign that Soviet policy may be shifting. Perhaps these actions are gestures timed to coincide with next weeks opening of the 26th Congress of the Communist Party of the Soviet Union. Perhaps they are signals to the new administration that the Soviet Union will now be willing to reopen further negotiations with the United States on arms control and other security matters of mutual interest.