The most effective preventive so far appears to be a system for screening passengers before flights.
El Al has been successful in thwarting hijackings and in creating the most thorough system for screening passengers and baggage.
But the innovation getting the most American attention is Japan's system for screening Chinese producers even before they ship their merchandise to Japan.
While there have been calls in Washington for stepped-up testing, there is also notable interest in Japan's new system for screening Chinese producers.
Long before Sept. 11, the federal government knew that the nation's system for screening airport baggage was bad and getting worse.
The system for screening refugees, conceived in the 1980s and updated after 9/11, involves the United Nations and several intelligence and immigration government agencies.
In October, the company, which is based in Lexington, Mass., joined forces with Visionics of Jersey City to develop a system for screening airport employees using facial recognition technology built by Visionics.
The benefits of action greatly outweigh the costs, Dr. Lodge said, citing the example of Australia's system for screening imported ornamental plants, with swift initial assessments usually taking just one week.
But we cannot rely on getting such timely, accurate intelligence — it often is simply unavailable — and the episode highlighted a number of problems with our system for screening inbound air cargo.
Kargbo replied, "Who's ICE?" It had been seven years since Kargbo was arrested for terroristic threats, and during that time Immigration and Customs Enforcement had expanded its system for screening foreign nationals held in jail, accelerating their deportation by more than a hundred per cent.
This paper documents the development of an expert system for screening wells that could be drilled underbalanced, and for aiding in the preliminary selection of appropriate underbalanced drilling fluids for a given range of wellbore and reservoir conditions.
