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Intrusions in privacy is more important then security.
Privacy advocates plan to call on the U.S. Department of Homeland Security to suspend use of "whole-body imaging," the airport security technology that critics say performs "a virtual strip search" and produces "naked" pictures of passengers
Even if the scanners prove to be safe, travellers feel their sense of privacy is being violated, since the scanned body images are quite detailed. Federal agencies have been insisting that the images are discarded as soon as they are viewed.
Passengers can opt out of the body scan, but then will be expected to submit to an invasive palms-down search that includes breasts and genitals.
Extra security checks based on one's nationality is also not justifiable.
Security is more important than privacy
In December 2001, Richard Reid, also known as the shoe bomber, was wrestled to the ground by passengers and crew as he attempted to ignite an explosive device hidden in his shoe while aboard an American Airlines flight from Paris to Miami.
The most recent in-air threat happened December 25 when Nigerian-born Umar Farouk Abdul mutallab, 23, attempted to detonate explosives sewn into his underwear while aboard a flight from Amsterdam to Detroit. So how was this individual able to come so close to succeeding? It was due to lack of security check issues.
After the Christmas scare, the Obama administration created new rules specifying that citizens of Afghanistan, Algeria, Cuba, Lebanon, Libya, Iran, Iraq, Nigeria, Pakistan, Saudi Arabia, Somalia, Sudan, Syria and Yemen, must receive a pat down and extra security check of their carry-on baggage before boarding any plane headed toward the United States. The new rules have been heavily criticized by rights advocates and these countries.
In the light of similar security threats conclusion is Security of people is much more important than privacy. As far as privacy is concern airports should not keep any permanent pictures or record revealed during these checks.