EPA Regs to Blame for Columbia?
From Chapter 3 of the official report on the Columbia disaster:
“Throughout the history of the External Tank, factors unrelated to the insulation process have caused foam chemistry changes (Environmental Protection Agency regulations and material availability, for example). The most recent changes resulted from modifications to governmental regulations of chlorofluorocarbons.“
The question has to be asked: Did the Columbia astronauts lose their lives because the EPA forced NASA to prioritize the ozone layer above their safety?