Chicago Tribune: 9/11 panel told of cover-ups before attacks

WASHINGTON -- The terrorist attacks of Sept. 11, 2001, were made possible by gaping holes in airline security, government cover-ups that prevented problems from being fixed and a failure to respond to a growing threat that terrorists might use airliners as weapons, witnesses told an independent commission this week.

"The notion that these hijackings and terrorism were an unforeseen and unforeseeable risk is an airline and FAA public-relations management myth," said Mary Schiavo, a former inspector general at the Department of Transportation, in testimony Friday.