Foam Gluing Flaw Killed Columbia Astronauts

Freshly Exhumed writes "Now it can be told: NASA's Columbia Accident Investigation Board has blamed the faulty application of insulating foam for the loss of the Columbia orbiter. From the chief engineer for the external tanks project: '...NASA concluded after extensive testing that the process of applying some sections of foam by hand with spray guns was at fault.' And further: 'It was not the fault of the guys on the floor; they were just doing the process we gave them'."