Air Security Experts Hope to Close Gaps Before It's Too Late

Bloom and other experts say security always will involve trade-offs. Good security involves looking at the threats and vulnerabilities at each airport and tailor-making a defense system. He favors fewer national mandates from Congress and more ability for local airport-security chiefs to adapt to changing risks and focus on worst-case scenarios.

"Even if you had the entire federal budget, you wouldn't have a perfect system at Orlando," he said. "There are an infinite amount of vulnerabilities."

Distributed by McClatchy-Tribune Information Services.

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