World Notes AFGHANISTAN

Will Soviet citizens have an extra cause to celebrate during this year's May Day festivities? If a report in Pravda is to be believed, the 115,000 Soviet troops in Afghanistan could start coming home May 1. The Soviets still insist, however, that the U.S. first halt support for the mujahedin rebel groups -- something the Reagan Administration has refused to do until Moscow agrees on a definite timetable for its pullout. Said a skeptical U.S. official: "We're waiting for that crucial missing link, which is a Soviet decision on withdrawal."