 The group also attacked Israeli authorities for alleged softness in fighting the Soviet Union on the issue of Jewish rights.One of the signatories, Dov Sperling, claimed that the recent cancellation of the Bolshoi Ballet's scheduled American tour was forced by the JDL and hailed it as the first public surrender by Soviet authorities to Jewish pressure.Herut leader Menachem Begin also declared support of acts of harassment against Soviet diplomatic establishments abroad.