Wednesday, February 10th, 2010
There are now questions being raised about the safety and privacy of this new technology.
Massachusetts Institute of Technology (MIT) “Technology Review” reports  the technology can harm human DNA:
The airport scanning technology creates a “picture” of the passenger’s body. Clothing is not really visible. Body parts, or any “additions”  or augmentations to the body, such as an implanted plastic bag of explosives, are visible.
Despite assurances that all of the potentially embarrassing “naked” photos of passengers will be deleted immediately after the scan, there has been, in less than a week of operation, a security breach at London’s airport.
It is highly unlikely that most of the travelling public will share Khan’s good humor or relish the publicity value in airport scan skin pics.
In the meantime, Israel’s airport security system continues to be worthy of study.
New “shoe” scanners are now in use to speed security. See video HERE. 
Passengers who pass through Israel’s airport must answer a series of questions.  The answers can take 30 seconds, or much longer, depending on the answers. The system is considered “behavior” rather than “ethnic” profiling.
Sky.com News reported earlier this month that U.K. officials are studying the Israeli approach. Why not the U.S.?
‘I was a little scared. Something happens [inside the scans], and I came out.
‘Then I saw these girls – they had these printouts. I looked at them. I thought they were some forms you had to fill. I said ‘give them to me’ – and you could see everything inside. So I autographed them for them.”
Alexandrov and co have created a model to investigate how THz fields interact with double-stranded DNA and what they’ve found is remarkable. They say that although the forces generated are tiny, resonant effects allow THz waves to unzip double-stranded DNA, creating bubbles in the double strand that could significantly interfere with processes such as gene expression and DNA replication. That’s a jaw dropping conclusion.
This should set the cat among the pigeons. Of course, terahertz waves are a natural part of environment, just like visible and infrared light. But a new generation of cameras are set to appear that not only record terahertz waves but also bombard us with them. And if our exposure is set to increase, the question that urgently needs answering is what level of terahertz exposure is safe.”