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Full-body scanners: we reveal all

Grat3fulh3ad

The Voice of Reason
Veteran
The recent release of pictures taken by full-body scanners has outraged the travelling public and focused attention on the risks the devices may carry. New Scientist deals with the concerns:
What are full-body scanners?

Remember the X-ray specs of science fiction comics that would let people see through walls and clothing? Full-body scanners are a bit like them. The scanners take advantage of the fact that at certain wavelengths, electromagnetic waves can pass through clothes but not through the skin, metal or substances such as drugs and explosives.

If your eyes were sensitive to these wavelengths like the scanners, every person you meet would appear naked, with pens, coins, belt buckles and the like magically festooned about their person. You would also be able to see if they were carrying a knife, gun or explosives.

What are the health concerns surrounding them?

There are two main types of full-body scanner. One uses X-rays while the other uses lower-energy millimetre wavelengths. X-rays are hazardous because their photons have enough energy to ionise atoms and break chemical bonds. That can cause damage to DNA that subsequently leads to cancer. The machines are deemed safe because the total dose that someone receives during a scan is tiny.

However, earlier this year, a group of scientists at the University of California, San Francisco, raised a number of concerns over X-ray scanners. They said the X-rays they use are low energy to ensure they bounce only off skin rather than passing through the body, to produce an image focused on objects concealed beneath clothes. This means that the entire dose that the person being scanned receives is concentrated on the skin rather than spread throughout their body. That could mean the skin receives a dose that is one or two orders of magnitude more than expected.

To many observers, the response of the US Food and Drug Administration failed to properly address these concerns.

Are there health concerns surrounding millimetre-wave scanners?

In theory, these ought to be safer than X-rays because millimetre photons do not have enough energy to break chemical bonds. Last year, however, researchers at Los Alamos National Laboratory in New Mexico suggested that these low energy photons could damage DNA in an entirely novel way. They say that while these photons cannot break DNA, they can shake it. This shaking may be so strong that it unzips the two strands in DNA, interfering with the genetic machinery that keeps cells working and healthy.

The team at Los Alamos did their calculations for submillimetre or terahertz waves, whose photons are slightly more energetic than those of millimetre waves. Their results are probabilistic rather than deterministic, they say. This explains why some experiments show that terahertz waves can damage DNA while other, practically identical studies show nothing.

While terahertz full-body scanners are not yet widely used, the work does show that the effects of electromagnetic waves on DNA are not fully understood.

Are there alternatives to full-body scanners?

Travellers can opt out of being scanned and choose to be frisked instead. In the US, one group is hoping to highlight the controversy over full-body scanners by encouraging everyone travelling on 24 November to elect to be frisked.

What about privacy concerns?

The US Transportation Security Administration admits that the scanners have the ability to store and print images. But it says this capability is used only when the machines are tested and is switched off at all other times. Critics point out that it isn't clear how difficult it is to reactivate this capability or how the TSA prevents employees from recording the images with another device such as a cellphone camera.

Earlier this week, hundreds of images taken by a body scanner used by marshals at a courthouse in Florida appeared on the internet. The TSA says it would be impossible for a similar leak to occur from airport scanners. It's fair to say the public is yet to be reassured.
 

sac beh

Member
So they need to be studied more. Which is my only issue with the TSA, that these new security measures are rolled out hastily and amidst fear, and not at a measured pace. Then add to that the fact that they are operated in public places filled with people and not under strict control like an x-ray in a doctor's office. And are these scanners really the best anti-terrorism investment? I think that should be considered also.

But I avoid air travel when I can anyway because I hate the hassle, not because I think the TSA is out to F me.

There is another way to scan someone that could bypass the X-ray health worries:

Of the 68 airports scanning for explosives, 30 are using millimeter-wave scanners that don’t use X-rays at all; they hit the surface of the body with safer radio waves. If the TSA committed to using only this type of equipment, it could avoid the safety concerns regarding the X-ray full body scanners completely. [Ars Technica]

So why not go all-millimeter-wave? Back in May, Maurine Fanguy of the TSA’s Office of Security Technology explained TSA’s rationale: They don’t want to be dependent upon just one vendor, or to miss out on advances in X-ray technology because they use only millimeter-wave. But to quote Dr. Brenner once more:

From the overall public health point of view, if indeed millimeter wave scanners are just as sensitive for detecting concealed explosives (which I think they are), there is a good argument that they should be being deployed in airports rather than the X-ray scanners.

http://blogs.discovermagazine.com/8...ation-risk-of-the-tsas-full-body-x-ray-scans/
 
G

Guest3498

I feel guilty for actually agreeing with Ann Coulter, but the heartless bitch is right in this case....

http://www.anncoulter.com/cgi-local/printer_friendly.cgi?article=397

After the 9/11 attacks, when 19 Muslim terrorists -- 15 from Saudi Arabia, two from the United Arab Emirates and one each from Egypt and Lebanon, 14 with "al" in their names -- took over commercial aircraft with box-cutters, the government banned sharp objects from planes.

Airport security began confiscating little old ladies' knitting needles and breaking the mouse-sized nail files off of passengers' nail clippers. Surprisingly, no decrease in the number of hijacking attempts by little old ladies and manicurists was noted.

After another Muslim terrorist, Richard Reid, AKA Tariq Raja, AKA Abdel Rahim, AKA Abdul Raheem, AKA Abu Ibrahim, AKA Sammy Cohen (which was only his eHarmony alias), tried to blow up a commercial aircraft with explosive-laden sneakers, the government prohibited more than 3 ounces of liquid from being carried on airplanes.

All passengers were required to take off their shoes for special security screening, which did not thwart a single terrorist attack, but made airport security checkpoints a lot smellier.

After Muslim terrorist Umar Farouk Abdulmutallab of Nigeria tried to detonate explosive material in his underwear over Detroit last Christmas, the government began requiring nude body scans at airports.

The machines, which cannot detect chemicals or plastic, would not have caught the diaper bomber. So, again, no hijackers were stopped, but being able to see passengers in the nude boosted the morale of airport security personnel by 22 percent.

After explosives were inserted in two ink cartridges and placed on a plane headed to the United States from the Muslim nation of Yemen, the government banned printer cartridges from all domestic flights, resulting in no improvement in airport security, while requiring ink cartridges who traveled to take Amtrak.

So when the next Muslim terrorist, probably named Abdul Ahmed al Shehri, places explosives in his anal cavity, what is the government going to require then? (If you're looking for a good investment opportunity, might I suggest rubber gloves?)

Last year, a Muslim attempting to murder Prince Mohammed bin Nayef of Saudi Arabia blew himself up with a bomb stuck up his anus. Fortunately, this didn't happen near an airport, or Homeland Security Secretary Janet Napolitano would now be requiring full body cavity searches to fly.

You can't stop a terrorist attack by searching for the explosives any more than you can stop crime by taking away everyone's guns.

In the 1970s, liberal ideas on crime swept the country. Gun owners were treated like criminals while actual criminals were coddled and released. If only we treated criminals with dignity and respect and showed them the system was fair, liberals told us, criminals would reward us with good behavior.

As is now well known, crime exploded in the '70s. It took decades of conservative law-and-order policies to get crime back to near-1950s levels.

It's similarly pointless to treat all Americans as if they're potential terrorists while trying to find and confiscate anything that could be used as a weapon. We can't search all passengers for explosives because Muslims stick explosives up their anuses. (Talk about jobs Americans just won't do.)

You have to search for the terrorists.

Fortunately, that's the one advantage we have in this war. In a lucky stroke, all the terrorists are swarthy, foreign-born, Muslim males. (Think: "Guys Madonna would date.")

This would give us a major leg up -- if only the country weren't insane.

Is there any question that we'd be looking for Swedes if the 9/11 terrorists, the shoe bomber, the diaper bomber and the printer cartridge bomber had all been Swedish? If the Irish Republican Army were bombing our planes, wouldn't we be looking for people with Irish surnames and an Irish appearance?

Only because the terrorists are Muslims do we pretend not to notice who keeps trying to blow up our planes.

It would be harder to find Swedes or Irish boarding commercial airliners in the U.S. than Muslims. Swarthy foreigners stand out like a sore thumb in an airport. The American domestic flying population is remarkably homogenous. An airport is not a Sears department store.

Only about a third of all Americans flew even once in the last year, and only 7 percent took more than four round trips. The majority of airline passengers are middle-aged, middle-class, white businessmen with about a million frequent flier miles. I'd wager that more than 90 percent of domestic air travelers were born in the U.S.

If the government did nothing more than have a five-minute conversation with the one passenger per flight born outside the U.S., you'd need 90 percent fewer Transportation Security Administration agents and airlines would be far safer than they are now.

Instead, Napolitano just keeps ordering more invasive searches of all passengers, without exception -- except members of Congress and government officials, who get VIP treatment, so they never know what she's doing to the rest of us.

Two weeks ago, Napolitano ordered TSA agents to start groping women's breasts and all passengers' genitalia -- children, nuns and rape victims, everyone except government officials and members of Congress. (Which is weird because Dennis Kucinich would like it.)

"Please have your genitalia out and ready to be fondled when you approach the security checkpoint."

This is the punishment for refusing the nude body scan for passengers who don't want to appear nude on live video or are worried about the skin cancer risk of the machines -- risks acknowledged by the very Johns Hopkins study touted by the government.

It is becoming increasingly obvious that we need to keep the government as far away from airport security as possible, and not only because Janet Napolitano did her graduate work in North Korea.
 

ddrew

Active member
Veteran
What is she saying that you agree with?
That everyone shouldn't get all bent out of shape if we single out the obvious muslims and give them an extra long search, while allowing others(non-muslim in appearance) to move through the line at a faster pace.

Which is fine with me.
 

Corpsey

pollen dabber
ICMag Donor
Veteran
its funny because they do single out certain groups.
if you come back from a "drug country" like Jamaica and you are white, young and flying alone they will search your bag and persons and spend a few minutes trying to intimidate you. i flew there twice a year for 20 years and it would be like clockwork every time i was passing through immigration on the way back into the US. and of course they would tell me it was random, riiightt.

why cant they do that with the people they suspect with bombings? they surely have no problem with people they think are drug mules.

PC bullshit
 

TruthOrLie

Active member
Veteran
its not even really about bombs. bombs is the cover up to have more technologies to catch mules.
 

sac beh

Member
Oh no, you guys are kidding right? You've bought into the media's obsession with Islam and Muslim terrorists? Why? Because its easier to place the threat in other countries, cultures, and religious beliefs rather than dealing with the rational proposition that terrorists come in quite a few shapes and sizes?

ddrew, you're going even further and saying that people who only appear Muslim should be given the extra long searches? Damn, I'm definitely not flying again if that were the genius security system in place. Racial profiling as the principle security method is ineffective and probably about as much of a waste of resources as these damn scanners.
 

Clackamas Coot

Active member
Veteran
This could be very troubling for pre-op transsexuals, eh? Not to mention if they were to opt for the pat-down deal.

"I'm going to give you 30 minutes to quit fondling my special purpose! I'm serious damn it!"

Then there's that famous scene from "When Harry Met Sally" with the line "I'll have what she's having!"

Troubling times indeed!

CC
 

rives

Inveterate Tinkerer
Mentor
ICMag Donor
Veteran
Oh no, you guys are kidding right? You've bought into the media's obsession with Islam and Muslim terrorists? Why? Because its easier to place the threat in other countries, cultures, and religious beliefs rather than dealing with the rational proposition that terrorists come in quite a few shapes and sizes?

ddrew, you're going even further and saying that people who only appear Muslim should be given the extra long searches? Damn, I'm definitely not flying again if that were the genius security system in place. Racial profiling as the principle security method is ineffective and probably about as much of a waste of resources as these damn scanners.

You should check out how the Israeli's protect their air travel. Amazing success rate with one hell of a lot more pressure from potential bombers.
 

ddrew

Active member
Veteran
ddrew, you're going even further and saying that people who only appear Muslim should be given the extra long searches? Damn, I'm definitely not flying again if that were the genius security system in place. Racial profiling as the principle security method is ineffective and probably about as much of a waste of resources as these damn scanners.
I was talking about the article that Vado quoted, you did pause to read what others posted right?

But yes I am saying that, try to get your white American ass anywhere near mecca, not happening, there are no more discriminatory people in the world when it comes to viewing other religions and cultures then the muslims.

So here's what I would do If I was in charge.
All non terrorist appearing people empty their pockets and go through the metal detector like always, and have carry on bags X-rayed.

All muslims/arabs go through the body scanner, strip search, cavity check with flashlight, and 30 minute interrogation.

When a Jeff Spicoli surfer looking guy trys to blow up a plane in the name of allah, then we will scan everyone, in the meantime we will stick to the people that have been trying, 100% muslim extremists.
And for the non extremists muslims, too bad, a few bad apples spoiled it for all of you, now strip down and bend over.
 

VirginHarvester

Active member
Veteran
People, this is complete BS. Our government did NOTHING to prevent 911 and now they are searching everyone, mostly non Muslims, to make you think they are looking out for you, that you are safe. This is all a complete lie. Most of the people working for TSA weren't even employed when they got their jobs. The government created an additional assload of spending to fool us, and take away your right to privacy.

God dammnit, I've been in airport lines watching them search grandmothers. Now they want to get pictures of your entire body and if you don't succumb they will search-grope you into shame.

Listen, even if they were doing this prior to 911 it wouldn't have helped. They were so freaking lax prior to 911 and now it really looks like they are trying to set precedent as to what the government has the right to do. You have to see it for what it is. our government is failing in every direction and wasting billions of dollars on this needless crap. They are literally using the Muslim threat they created to steal your rights.

We have to be honest about this. Most of the shipments that come in from overseas aren't searched but they expect you to believe or go along with the notion that if they search a bunch of white Americans we'll be safer? This government has become a load of shite.
 

sac beh

Member
I was talking about the article that Vado quoted, you did pause to read what others posted right?

But yes I am saying that, try to get your white American ass anywhere near mecca, not happening, there are no more discriminatory people in the world when it comes to viewing other religions and cultures then the muslims.

So here's what I would do If I was in charge.
All non terrorist appearing people empty their pockets and go through the metal detector like always, and have carry on bags X-rayed.

All muslims/arabs go through the body scanner, strip search, cavity check with flashlight, and 30 minute interrogation.

When a Jeff Spicoli surfer looking guy trys to blow up a plane in the name of allah, then we will scan everyone, in the meantime we will stick to the people that have been trying, 100% muslim extremists.
And for the non extremists muslims, too bad, a few bad apples spoiled it for all of you, now strip down and bend over.

Of course I read it, and your response to it, which is why I disagree. Aside from this statement being misleading if not completely incorrect: "In a lucky stroke, all the terrorists are swarthy, foreign-born, Muslim males.", racial profiling won't be effective as a principle security measure against terrorism.

Do I need to list for you non-Muslim terrorists and security threats?
 
Oh no, you guys are kidding right? You've bought into the media's obsession with Islam and Muslim terrorists? Why? Because its easier to place the threat in other countries, cultures, and religious beliefs rather than dealing with the rational proposition that terrorists come in quite a few shapes and sizes?

ddrew, you're going even further and saying that people who only appear Muslim should be given the extra long searches? Damn, I'm definitely not flying again if that were the genius security system in place. Racial profiling as the principle security method is ineffective and probably about as much of a waste of resources as these damn scanners.

You do have a point. If they implemented a ethnicity based search, wouldn't muslims try to conform to look like clean cut americans? Hell, they are planning on blowing themselves up anyway, something tells me they aren't worried that they dont have to wear their traditional garb...
 

spurr

Active member
Veteran
FWIW, The recently released pics are not from air ports, and no travelers were in the pics. The pics are from a different type of full-body scanner from a courthouse in Florida.
 

sac beh

Member
You should check out how the Israeli's protect their air travel. Amazing success rate with one hell of a lot more pressure from potential bombers.

Please. Don't hold up Israel as an example of successful security. Their security has come at the price of another people's near complete destruction, the longest-lasting yet most accepted example of genocide we have today.
 

ddrew

Active member
Veteran
Sac I am a supporter of profiling, if a crime is being committed predominately by a certain ethnic group or religion, then I'm OK with a taking a longer look at them then the next guy. Will this catch everyone out to do wrong?
No, but I'll bet we start catching more then we are now.
 

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