After dramatically defining “Normalization of Deviance,” Astronaut Mullane explains how individuals and teams can defeat this dangerous phenomenon through these practices: recognizing one’s vulnerability to it; making it a religion to “plan the work and work the plan;” considering one’s instincts; and, archiving and periodically reviewing near-misses and disasters so the corporate memory never fades. Mullane explains that the loss of the space shuttle Columbia–17 years after Challenger–was a repeat of Normalization of Deviance.
http://www.youtube.com/watch?v=Dm0pE4CojtA