http://www.champion.com.ng/printversion.asp?pid=2333 Director General of the Nigerian Civil Aviation Authority, Dr. Harold Demuren at International Civil Aviation Organization (ICAO) conference at Abuja, Nigeria in April 2010 said, "The world faces continuing, determined and sophisticated threats from terrorists and smugglers. As their methods evolve, so must ours. But how do we increase security without invading peopleʼs privacy and causing massive delays to an increasing number of air travelers? One, technology you will see today, ProVigilant, exemplifies a whole new approach to the problem. Given the near impossibility of finding every drug or bomb on millions of airline passengers flowing through hundreds of airports on any given day, ProVigilant looks not at the body or baggage of the passenger but rather the intentions in his or her mind. In two minutes, using a touch screen, it measures their stress response to a scientifically developed set of questions, deciding if the subject needs further questioning. 99 percent of all passengers will quickly be green-lighted through. One percent will have to answer more questions. Those who fail the second test will face thorough scrutiny. This represents a new paradigm in security because not only does it identify those attempting to bomb or smuggle that day, it also identifies those who may be involved in terrorism or drugs even though they are not attempting something at the moment. Although this is only one important layer of an overall solution, it is an essential one in that it builds a database of vital information for the world aviation security community." 
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