chapter  14
Lying and Deception
Pages 16

The night before the launch a group of engineers at Morton Thiokol, the firm that had built the booster rockets, officially recommends that the launch be delayed because the cold weather forecast for overnight might severely reduce the elasticity of the rubber O-ring seals. If that were to happen, leaking fuel might cause the booster rockets to explode. The engineers at Thiokol called the National Aeronautic and Space Administration (NASA), unanimously urging postponement of the launch scheduled for the following morning.