I think you're anachronistically conflating Che-t-shirt leftism with the political inclinations of plenty of educated, professional people of the period. Many a

I think you're anachronistically conflating Che-t-shirt leftism with the political inclinations of plenty of educated, professional people of the period. Many atomic spies had political or ideological motives as did several of the Cambridge Five and their initial contacts with Soviet intelligence came about because Soviet intelligence specifically set out to recruit in such circles.