american sociological association barry goldwater boston review character assassination cold war communism eric hoffer evangelicalism false consensus effect fanaticism far left far right fascism fear mongering fundamentalism groupthink ideology karl hess ku klux klan laird wilcox nation of islam nuclear disarmament obedience obfuscation pejorative physics political radicalism politician politics prometheus books religion seymour martin lipset sister souljah moment the extremist the true believer united states