What we should remember about Al McDonald [is] he would often stress his laws of the seven R's," Maier says. "It was always, always do the right thing for the right reason at the right time with the right people. [And] you will have no regrets for the rest of your life.
Even following all that could have led to Challenger exploding (stochastic process with non-zero probability of a terminal failure), and leaving everyone with "What did we do wrong?" without any answer and full of regrets for the rest of their lives.
