TSA backpedals, will conduct new study of X-ray scanners at airports
TSA administrator is 'concerned that there is a perception' that X-ray body scanners are not safe.
By ProPublica.orgThu, Nov 03 2011 at 1:36 PM EST
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A SAFER ALTERNATIVE: A Transportation Security Administration (TSA) volunteer is filmed by members of the media as she takes part in a demonstration of a millimeter wave imaging technology. The millimeter scanner is not considered to be a health danger to travelers, unlike the X-ray devices. (Photo: ZUMA Press)
The head of the Transportation Security Administration testified today that the agency will perform a new, independent study on the safety of X-ray body scanners after lawmakers raised questions about a ProPublica investigation at a Senate hearing on aviation security.
The story, researched in conjunction with the PBS NewsHour, reported that while the radiation emitted from the machines is extremely low, scientific studies have concluded that they could still increase the risk of cancer. It also reported that the Food and Drug Administration went against the advice of a 1998 expert panel, which recommended the agency set a mandatory federal safety standard for the machines. Several members of that panel said they were concerned about widespread use of X-ray scanners, including in airports.
The TSA uses two types of body scanners to search for explosives — an X-ray machine that uses ionizing radiation, a form of energy that has been shown to damage DNA, and a millimeter-wave machine that uses radiofrequency technology, which has not been linked to cancer.
Sen. Susan Collins, the top Republican on the homeland security committee, recommended that the Department of Homeland Security independently evaluate the health effects of the X-ray scanners and "establish a goal of using radiation-free screening technology."
Questioned about the story by Sen. Joe Lieberman, TSA Administrator John Pistole said that the agency has already conducted several independent studies showing that the radiation is equivalent to the dose received in about three minutes of flying at typical cruising altitude.
"But that being said, I am concerned that there is a perception that they are not as safe as they could be," Pistole said. "And since we are using a different technology, that being the millimeter-wave scanner, that does not have that same perspective, I will take that back and we will conduct an independent study to address that."
In recent years, the TSA has commissioned tests of the X-ray machines, also known as backscatters, by the Food and Drug Administration and the Johns Hopkins University Applied Physics Laboratory. In addition, survey teams from the Army Public Health Command visit airports to check the machines. The TSA says the results have all confirmed that the backscatters don't pose a significant risk to public health.
But David Brenner, director of Columbia University's Center for Radiological Research, said in a recent interview that while the dose is low, the chances of someone getting cancer increase as TSA puts millions of airline passengers through the machines.
"Why would we want to put ourselves in this uncertain situation where potentially we're going to have some cancer cases?" he asked. "It makes me think, really, why don't we use millimeter waves when we don't have so much uncertainty?"
Robin Kane, the TSA's assistant administrator for screening technology, told ProPublica and PBS that the health risk is small compared to the security benefit. Having both technologies is important, he added, to improve detection capabilities and find the most cost-effective solution.
This story was reported by Michael Grabell at ProPublica and was reprinted here with permission.
Comments
Starbuck
11/08/2011 10:51 AM
Not only is there a "perception" that the scanners aren't safe. There is also a "perception" that this is highly invasive and not as effective as they would like us to believe. I think they should put armed air marshals on every flight, harden the cockpit doors, and TSA should backpedal right on out of here.
"BAN THE SCAN"
11/07/2011 15:49 PM
21 REASONS SCIENTISTS OPPOSED BODY SCANNERS:
http://warondriving.com/post/9114691887/tsa-bodyscanners
Wimpie
11/04/2011 15:52 PM
The gestapo is more interested in saving money on scanners than protecting the public health.
Pistole and Incompetano should go to jail!
Excellent video
11/04/2011 14:14 PM
Watch this exceptional 2010 interview of 2 Professors telling their concerns of the scanners and cancer: http://www.youtube.com/watch?v=eS0UxXDNs4w
"NO PROOF TSA SCANNERS ARE SAFE"
11/04/2011 14:10 PM
They knew the scanners weren't safe in 2010. Read this article called "No Proof Scanners Are Safe" written by a two-time Pulitzer Prize winner: http://www.aolnews.com/2010/12/20/aol-investigation-no-proof-tsa-scanner...
