. ▁In ▁January ▁ 1 9 7 2 , ▁he ▁participated ▁in ▁a ▁demonstr ation ▁against ▁the ▁World ▁Z ion ist ▁Congress , ▁arg uing ▁that ▁the ▁Congress ▁was ▁partial ▁to ▁exclus ively ▁to ▁the ▁interests ▁of ▁Z ion ist ▁Jews ▁of ▁European ▁orig ins ▁and ▁that ▁the ▁organization ▁" does ▁not ▁speak ▁for ▁all ▁the ▁Jews ▁of ▁the ▁world " ▁as ▁it ▁claimed . ▁Later ▁that ▁year , ▁he ▁participated ▁in ▁one ▁of ▁the ▁Black ▁Pan thers ' ▁most ▁famous ▁actions ▁nick named ▁" Operation ▁Mil k ", ▁where ▁they ▁st ole ▁milk ▁bott les ▁from ▁the ▁relatively ▁wealth y ▁neighborhood ▁of ▁Re hav ia ▁and ▁distributed ▁them ▁to ▁the ▁poor ▁living ▁in ▁the ▁sl ums ▁of ▁Jerusalem , ▁writing ▁on ▁the ▁bott les ▁" For ▁the ▁children ▁of ▁the ▁sl ums ▁who ▁do ▁not ▁have ▁the ▁milk ▁that ▁they ▁need ▁in ▁the ▁morning , ▁while ▁elsewhere ▁c ats ▁and ▁dogs ▁live ▁in ▁abund ance ". ▁In ▁the ▁summer ▁of ▁ 1 9 7 3 , ▁Sh em esh ▁participated ▁in ▁a ▁deleg ation ▁to ▁ 1 0 th ▁World ▁Festival ▁of ▁Youth ▁and ▁Stud ents ▁organized ▁by ▁the ▁Isra eli ▁Commun ist ▁Party , ▁meeting ▁Ang ela ▁Davis ▁as ▁well ▁as ▁the ▁leaders ▁of ▁the ▁Palest ine ▁Liber ation ▁Organ ization ▁and ▁several ▁Eastern ▁B loc ▁countries . ▁ ▁In ▁the ▁run ▁up ▁to ▁the ▁ 1 9 7 3 ▁Isra eli ▁legisl ative ▁election , ▁Sh em esh ▁opposed ▁a ▁list ▁spons ored ▁by ▁the ▁Black ▁Pan thers ▁and ▁head