sentences:  In the academic world, his founding supporters included Rabbi Shlomo Riskin, Chairman, Dr. Irving Greenberg, Vice Chairman, Rabbi Charles Sheer, Vice Chairman.Rabbi Avraham Weiss became an officer in 1971, accelerated SSSJ’s activist modes, and campaigned relentlessly for Anatoly Sharansky.Succeeding Rabbi Riskin as chairman, he served in that capacity 1984–1989.