No, You May Not...

Good article by Patrick Smith titled "Getting beyond our airport security obsession".

http://www.salon.com/news/feature/2006/08/10/bomb/index.html

Ultimately, protecting commercial aircraft from terrorism is not the job of airport security, it's a job for police departments, federal law enforcement and intelligence agencies. The apparent plot at Heathrow Airport was not unraveled by the keen eye of a concourse screener; it was unraveled through careful investigation behind the scenes. By the time any attacker makes it to the metal detector, chances are it's already too late. There are too many ways to outwit that final line of defense.