"Six months before the space shuttle Challenger exploded over Florida on Jan. 28, 1986, Roger Boisjoly wrote a portentous memo. He warned that if the weather was too cold, seals connecting sections of the shuttle's huge rocket boosters could fail. "The result could be a catastrophe of the highest order, loss of human life," he wrote. The shuttle exploded 73 seconds after launching, killing its seven crew members, including Christa McAuliffe, a high school teacher from Concord, N.H."
"I'm very angry that nobody listened," Boisjoly told me. And he asked himself, he said, if he could have done anything different. But then a flash of certainty returned. "We were talking to the right people," he said. "We were talking to the people who had the power to stop that launch."
"When the space shuttle Columbia burned up on reentry in 2003, killing its crew of seven, the accident was blamed on the same kinds of management failures that occurred with the Challenger. By that time, Boisjoly believed that NASA was beyond reform, some of its officials should be indicted on manslaughter charges and the agency abolished."