Why Challenger Failed

So basically this analysis of the Challenger failure is a much tighter version of what I said in junior high.  Nobody listened to me then.  Nobody is listening to me now; everything is geared toward doing things faster and cheaper.  But if you are in any job where important things going wrong could injure people, wreck the environment, or waste tons of money then please consider this a reminder to go check  your fault tolerances, safety precautions, and emergency supplies.  I know, I know, people think fault tolerance is a huge waste of space and money.  But it's not.  It's the price you pay for having ways to stop an emergency before it becomes a deadly flaming disaster.