Chalk one up for my third favorite axiom, the law of unintended consequences. Apparently, since we are no longer hugging our children with nuclear arms, NASA is running out of fuel for deep space probes. We used to have pounds of the stuff, but we gave it all up at the end of the cold war, and world wide supplies are running short. Oops.
(And in case you wanted to know, I am also partial to the law of gravity and like the Simpsons, in my house we obey the laws of thermodynamics).