"Most people today," writes political 
philosopher John Gray, "think they belong to a species that can be 
master of its destiny. This is faith, not science."
The
 unfolding disaster at Japan's Fukushima Daiichi Nuclear Power Station 
sorely strains that faith, as did the 1979 crisis at Pennsylvania's 
Three Mile Island nuclear plant and the 1986 catastrophe at Chernobyl in
 the Ukraine.