Chuikov. Russian commander in Berlin. expressed regrets over the shooting down. a short time before. of a British plane. Since that date the Russians have arranged to release British civilians that had been interned for many months in North Korea. they have arranged the return of some 2.000 Japanese that had been stranded in China after World War II. they have permitted American newsmen to obtain visas to enter Moscow. they have accepted Gen. Mark Clarks offer to exchange sick and wounded prisoners of war. and. Red Chinese Premier Chou Enlai agreed to abandon the Red stand on forced repatriation of all prisoners. they have agreed to accept Dag Hammarskjoeld of Sweden as successor to Trygve Lie. have proposed a fourpower discussion on German unity and peace. have announced sharp cuts in prices of foods and various forms of merchandise inside the Soviet Union.