Pedzisa mutsara unotevera: Pamberi pokuumbwa kweSftP nokushingaira kwayo kukuru kurwisana nesayenzi yakagadzwa kuedza kwakafanana kwakaitika nemamwe masangano. Muenzaniso wakatanhamara ndeweUniversity of California, Berkeley munyori wefizikisi wenyukireya Charles Schwartz muna 1967 achiedza kugadzirisa bumbiro reAmerican Physical Society (APS) kubvumira 1% yenhengo kukumbira kuvhota pane chero nyaya yemagariro kana yesayenzi. Chikumbiro chake chakarambwa nokuti nhengo dzeAPS dzakanga dzisingafungi kuti nzanga inofanira kuva nechimiro panhau dzomunzanga. Mumwe muenzaniso chikumbiro chavanyori vefizikisi chakanga chatanga kuAPS kuti irege kuita musangano waro wa1970 muChicago nemhaka youtsinye hwemapurisa pa
Democratic National Convention muna 1968. APS Council yakabvunzurudza mitezo ndokusimbisa chisarudzo chayo chokuchengeta musangano muChicago.