|
So what is the big deal with the TSA pat downs? (pg. 8)
|
View this Thread in Original format
| psyrel |
Whole Body Backscatter X-Ray Airport Security Scanners: Serious Health Risks for Air Travel Passengers
by Profs. John Sedat and Elizabeth Blackburn and Marc Shuman
Global Research, November 29, 2010
The following is a letter from members of the University of California San Francisco - to Dr John P Holdren, Assistant to the President for Science and Technology
Dear Dr Holdren,
We, a number of University of California, San Francisco faculty, are writing -- see attached memo -- to call to your attention our concerns about the potential serious health risks of the recently adopted whole body backscatter X-ray airport security scanners. This is an urgent situation as these X-ray scanners are rapidly being implemented as a primary screening step for all air travel passengers.
By way of introduction one of us (John Sedat) met you recently when he and his wife Dr Elizabeth Blackburn, a 2009 Nobel Laureate, talked with President Obama last December.
Dr Sedat is Professor Emeritus in Biochemistry and Biophysics at the University of California San Francisco, with expertise in imaging. He is also a member of The National Academy of Sciences. The other co-signers include Dr Marc Shuman, an internationally well known and respected cancer expert and UCSF professor, as well as Drs David Agard and Robert Stroud, who are UCSF Professors, X-ray crystallographers, imaging experts and NAS members.
Sincerely Yours
Professors John Sedat, Elizabeth Blackburn, Marc Shuman, David Agard, Robert Stroud
----------------------------------------------------------------------
LETTER OF CONCERN
We are writing to call your attention to serious concerns about the potential health risks of the recently adopted whole body backscatter X-ray airport security scanners. This is an urgent situation as these X-ray scanners are rapidly being implemented as a primary screening step for all air travel passengers.
Our overriding concern is the extent to which the safety of this scanning device has been adequately demonstrated. This can only be determined by a meeting of an impartial panel of experts that would include medical physicists and radiation biologists at which all of the available relevant data is reviewed.
An important consideration is that a large fraction of the population will be subject to the new X-ray scanners and be at potential risk, as discussed below. This raises a number of ‘red flags’. Can we have an urgent second independent evaluation?
The Red Flags
The physics of these X-rays is very telling: the X-rays are Compton-Scattering off outer molecule bonding electrons and thus inelastic (likely breaking bonds).
Unlike other scanners, these new devices operate at relatively low beam energies (28keV). The majority of their energy is delivered to the skin and the underlying tissue. Thus, while the dose would be safe if it were distributed throughout the volume of the entire body, the dose to the skin may be dangerously high.
The X-ray dose from these devices has often been compared in the media to the cosmic ray exposure inherent to airplane travel or that of a chest X-ray. However, this comparison is very misleading: both the air travel cosmic ray exposure and chest Xrays have much higher X-ray energies and the health consequences are appropriately understood in terms of the whole body volume dose. In contrast, these new airport scanners are largely depositing their energy into the skin and immediately adjacent tissue, and since this is such a small fraction of body weight/vol, possibly by one to two orders of magnitude, the real dose to the skin is now high.
In addition, it appears that real independent safety data do not exist. A search, ultimately finding top FDA radiation physics staff, suggests that the relevant radiation quantity, the Flux [photons per unit area and time (because this is a scanning device)] has not been characterized. Instead an indirect test (Air Kerma) was made that emphasized the whole body exposure value, and thus it appears that the danger is low when compared to cosmic rays during airplane travel and a chest X-ray dose. In summary, if the key data (flux-integrated photons per unit values) were available, it would be straightforward to accurately model the dose being deposited in the skin and adjacent tissues using available computer codes, which would resolve the potential concerns over radiation damage.
Our colleagues at UCSF, dermatologists and cancer experts, raise specific important concerns:
• A) The large population of older travelers, >65 years of age, is particularly at risk from the mutagenic effects of the X-rays based on the known biology of melanocyte aging.
• B) A fraction of the female population is especially sensitive to muta genesis provoking radiation leading to breast cancer. Notably, because these women, who have defects in DNA repair mechanisms, are particularly prone to cancer, X-ray mammograms are not performed on them. The dose to breast tissue beneath the skin represents a similar risk.
• C) Blood (white blood cells) perfusing the skin is also at risk.
• D) The population of immuno compromised individuals--HIV and cancer patients (see above) is likely to be at risk for cancer induction by the high skin dose.
• E) The risk of radiation emission to children and adolescents does not appear to have been fully evaluated.
• F) The policy towards pregnant women needs to be defined once the theoretical risks to the fetus are determined.
• G) Because of the proximity of the testicles to skin, this tissue is at risk for sperm mutagenesis.
• H) Have the effects of the radiation on the cornea and thymus been determined?
Moreover, there are a number of ‘red flags’ related to the hardware itself. Because this device can scan a human in a few seconds, the X-ray beam is very intense. Any glitch in power at any point in the hardware (or more importantly in software) that stops the device could cause an intense radiation dose to a single spot on the skin. Who will oversee problems with overall dose after repair or software problems? The TSA is already complaining about resolution limitations; who will keep the manufacturers and/or TSA from just raising the dose, an easy way to improve signal-to-noise and get higher resolution? Lastly, given the recent incident (on December 25th), how do we know whether the manufacturer or TSA, seeking higher resolution, will scan the groin area more slowly leading to a much higher total dose? After review of the available data we have already obtained, we suggest that additional critical information be obtained, with the goal to minimize the potential health risks of total body scanning. One can study the relevant X-ray dose effects with modern molecular tools.
Once a small team of appropriate experts is assembled, an experimental plan can be designed and implemented with the objective of obtaining information relevant to our concerns expressed above, with attention paid to completing the information gathering and formulating recommendations in a timely fashion. We would like to put our current concerns into perspective. As longstanding UCSF scientists and physicians, we have witnessed critical errors in decisions that have seriously affected the health of thousands of people in the United States. These unfortunate errors were made because of the failure to recognize potential adverse outcomes of decisions made at the federal level.
Crises create a sense of urgency that frequently leads to hasty decisions where unintended consequences are not recognized. Examples include the failure of the CDC to recognize the risk of blood transfusions in the early stages of the AIDS epidemic, approval of drugs and devices by the FDA without sufficient review, and improper standards set by the EPA, to name a few. Similarly, there has not been sufficient review of the intermediate and long-term effects of radiation exposure associated with airport scanners. There is good reason to believe that these scanners will increase the risk of cancer to children and other vulnerable populations. We are unanimous in believing that the potential health consequences need to be rigorously studied before these scanners are adopted. Modifications that reduce radiation exposure need to be explored as soon as possible.
In summary we urge you to empower an impartial panel of experts to re-evaluate the potential health issues we have raised before there are irrevocable long-term consequences to the health of our country.
These negative effects may on balance far outweigh the potential benefit of increased detection of terrorists.
Global Research Articles by John Sedat
Global Research Articles by Elizabeth Blackburn
Global Research Articles by Marc Shuman
http://www.globalresearch.ca/index....xt=va&aid=22153 |
|
|
| Abercrombie |
Blah Blah Blah Blah Blah Blah Blah
Blah Blah Blah Blah Blah Blah Blah
Blah Blah Blah Blah Blah Blah Blah
| quote: | Originally posted by psyrel
• G) Because of the proximity of the testicles to skin, this tissue is at risk for sperm mutagenesis. |
Oh now you got my attention. |
|
|
| Endlesswave |
| quote: | Originally posted by Abercrombie
Blah Blah Blah Blah Blah Blah Blah
Blah Blah Blah Blah Blah Blah Blah
Blah Blah Blah Blah Blah Blah Blah
Oh now you got my attention. |
LOL.
That's the part that stood out to me as well...have to take care of the boys + radiation down there can't help. Wtf. |
|
|
| KStuff |
| I'm opting out mostly due to those potential health risks. Especially since the radiation is cumulative. I've gone through the scanner 3x so far, before I knew about the risks, and haven't been selected since then to opt out. |
|
|
| VDub |
If health is the issue and you fly a lot, I could understand the opt out..
But for me flying once a year, I'd probably just go through the scanner as it would be faster... |
|
|
| Abercrombie |
| quote: | Originally posted by Endlesswave
LOL.
That's the part that stood out to me as well...have to take care of the boys + radiation down there can't help. Wtf. |
Well because of the proximity of the testicles to the skin... I recommend not smoking weed beforehand because that would make them hang like a pair of dangling kiwis in a tube sock. I think it would be a good idea to put an small ice pack in your underwear so that the testicles can recede back deep in the body, thus minimizing exposure. |
|
|
| Dior Homme |
You have to watch it on YouTube, no embedding
VIDEO LINK
| quote: | Yesterday, wearing only a black bra and panties, a 52-year-old woman who uses a wheelchair missed her flight out of Oklahoma City. She failed the security screening.
Transportation Security Administration screeners told Phoenix-bound Tammy Banovac her wheelchair, luggage and clothes showed traces of nitrates, which can be used in bombs, The Oklahoman reports. After more than an hour of hand searches and interrogation, she was told to come back to Will Rogers World Airport today.
This morning, Banovac returned — wearing the same minimalist travel ensemble. She passed TSA's screening and off she and her dog went. (She dressed after being screened.)
Banovac told the paper that because of her wheelchair she is typically hand-searched. But the TSA's new, enhanced pat-downs have left her feeling violated. She said an "unpleasant" TSA experience two weeks ago prompted her revealing approach to pat-downs.
"If it happened anywhere else, it would have been sexual assault," she said.
Naturally, someone captured her 7 a.m. departure and posted it on YouTube.
(Posted by Michael Winter) |
OTHER REPORTS
This blonde bombshell wearing just black lace, a pearl necklace and a white dog is Tammy Banovac, a retired surgeon in a wheelchair. She got down to her lingerie while going through airport security and still got a pat down. Twice.
Dr. Banovac always refuses to go through the metal detector. She has to use a metal wheelchair and that means that she always gets a pat down no matter what. Lately, she says she feels violated because the pat downs have become increasingly invasive during the last few months. "If it happened anywhere else, it would have been sexual assault," she declared to a local newspaper.
She was so angry with the situation that she decided to change things. On November 30, the 52-year-old arrived to the Will Rogers World Airport in Oklahoma City en route to Phoenix, wearing just a trench coat. When it was time to pass through the check point, she took off her coat, stripping down to her black lace lingerie. She hoped that, by showing that she had nothing to hide, she would not be hand-searched.
Sadly for her, things got worse: The perspicacious TSA agents wanted her to go through the metal detector, anyway. When she understandably refused, they decided to give her a pat down.
At this point, the quick-witted TSA agents said they found traces of nitrate on her body. Banovac claimed that it was probably her medication or a result of a hunting day. However, since it's obvious that the retired surgeon could be a secret Al-Qaeda terrorist carrying a bomb somewhere in her lace bra or panties, the astute TSA officials subjected her to a one-hour hand-search and interrogation. Yes, one hour.
As a result, she missed her flight to Phoenix and had to return home.
But hold on, because it gets even more surreal: She returned the next day and the same thing happened. She got down to her lingerie and got a hand-search anyway. This time, however, she could make her flight on time.
If this is not an example of everything that is ed up with the TSA, I don't know what is.
GIZMODO |
|
|
| jad |
| quote: | Originally posted by psyrel
Whole Body Backscatter X-Ray Airport Security Scanners: Serious Health Risks for Air Travel Passengers
|
|
|
|
| VDub |
| quote: | Originally posted by Dior Homme
This blonde bombshell wearing just black lace, a pearl necklace and a white dog is Tammy Banovac, |
I'd like to give her a pearl necklace...
What a cougar!!! |
|
|
| Dior Homme |
| quote: | Originally posted by VDub
I'd like to give her a pearl necklace...
What a cougar!!! |
It turns out that....... LOL
| quote: | Another mystery solved: The black-laced blonde bombshell protagonist of the most stupid and surreal TSA action to date posed naked for Playboy in 1997. No kidding. The surgeon was really a Playboy bunny, and here's the proof.
52-year-old Dr. Tammy Banovac was then a dental surgeon working in Oklahoma. At the time she still used her maiden name, Tammy Lynn Brewer, which is confirmed by her Classmates page.
When I was a kid I used to think that all those Playboy bunnies who claimed to be doctors, scientists or mechanics were just a source of kinky fantasies. Happily, my kinky fantasies just turned out to be real. |
Honestly, as a side note. I still think its wrong.
SOURCE |
|
|
| Euphorica |
Im not down with this illusion of security.
No thanks for the xray and not to keen on the pat down...though i could likley put up with that more so than the xray.
thank goodness i dont have to fly anywhere |
|
|
| Abercrombie |
| quote: | Originally posted by Dior Homme
This blonde bombshell wearing just black lace, a pearl necklace and a white dog is Tammy Banovac, a retired surgeon in a wheelchair. She got down to her lingerie while going through airport security and still got a pat down. Twice.
|
"You're looking at one sick bitch: 17 years ago, the Arizona State Board of Dental Examiners revoked Tammy Banovac's dental license after a 7-year-old boy DIED when she removed NINE of his teeth. Tammy Banovac then moved on to soft porn, posing under the name "Tammy L. Brewer" in Playboy's April 1997 magazine's pictorial featuring “dental girls”. Her greeting to new patients allegedly was, "Hi, tell me how you want me to adjust the chair." Like I said: You're looking at one sick bitch..." |
|
|
|
|
