The US civil rights movement of the 1950s and 60s sparked nationwide protests, marches and action, resulting in fundamental changes for a nation that had long touted democracy and equality abroad while oppressing vast swathes of its own citizens at home. It remains one of the most significant times in recent history, but there's another twist to the story -- half a world away, the USSR joined the movement... though its intentions for dong so were anything but altruistic.