What Israel can teach us about airport security.

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Recent incidents at airports in Newark, N.J., and Amsterdam suggest that asking travelers to take off their shoes and put toiletries in plastic baggies might not be cutting the proverbial mustard when it comes to airport security. So what should be done to make it safer to fly? Maybe the rest of the world's airports should consider adopting the following practices, already in place at the airport that security experts dub the safest in the world: Ben-Gurion International Airport in Tel Aviv, Israel:

* Roadside checks. Travelers are stopped as they approach the airport and asked a few basic questions. Security agents examine answers--and behavior while answering--for signs that closer scrutiny is warranted.

* Armed guards at airport and terminal entrances monitor travelers for suspicious behavior and conduct random checks.

* Prior to visiting a check-in counter, each...

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