We know that erstwhile perennial presidential candidate Ralph Nader moonlights as a science fiction novelist, but did you know the consumers' rights crusader also dabbled in Kryptonite advocacy? Don't forget about pink Kryptonite, Ralph! It unbelievably exists!
I have no idea where this clip is from, but I assume he filmed this PSA in Metropolis en route to some puppet-strewn thoroughfare.
UPDATE: It's from the 1988 Superman 50th Anniversary Special. Thanks, Wolfsheim!