He had no idea whether it was a risk worth taking or not, because they rejected any evidence short of certainty that the O-rings would fail on a given flight. T

He had no idea whether it was a risk worth taking or not, because they rejected any evidence short of certainty that the O-rings would fail on a given flight. The results of the Rogers Commission make this abundantly clear to anybody who cares to pay attention, yet he professes to have learned nothing.