The 9/11 terrorists penetrated multiple layers of potential protection to prosecute their plan, revealing the high cost of a complacent and uncoordinated defense, according to hearings last week of the commission convened to assess the attacks. The picture that was presented could be likened to the same "Swiss cheese" paradigm so often used in discussions of aviation safety. In this construct, various layers of defenses against disaster are shown with holes like those in Swiss cheese representing vulnerabilities. When the…
Panel Finds 9/11 Hijackers Exploited Glaring Gaps in Defenses
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