I have been particularly involved in the case of Benjamin Charny. a mathematician who has been denied permission to leave the Soviet Union to seek treatment for his cancer. Today. the New York Times published a guest editorial from Benjamin Charny. It explains in detail how Mr. Charnys work in mathematics performed over 16 years ago cannot possibly pose any threat to the Soviet Union today. While the Soviets have denied Mr. Charnys visa in order to protect "state security." I can only conclude that there is another reason he is not allowed to leave. and that reason is antiSemitism. Mr. Charny. like all refusniks. is Jewish.