...in the future, it might also help to remember that models of morality/ethics are approximately as hard to get right as cryptosystems -- harder, if you factor

...in the future, it might also help to remember that models of morality/ethics are approximately as hard to get right as cryptosystems -- harder, if you factor in the inherent squishiness and inexactitude of the subject matter. As with crypto, so with ethics: trust your libs before you trust your midnight flights.