Report of the Presidential Commission on the Space Shuttle Challenger Accident
Читаю - http://science.ksc.nasa.gov/shuttle/missions/51-l/docs/rogers-commission/table-of-contents.html
"a kind of Russian roulette. ... (The Shuttle) flies (with O-ring
erosion) and nothing happens. Then it is suggested, therefore, that
the risk is no longer so high for the next flights. We can lower our
standards a little bit because we got away with it last time. ... You
got away with it, but it shouldn't be done over and over again likethat."l