Last night, while watching the CBC, the great Peter Mansbridge was interviewing our PM Harper, and I found out that Canadians can opt out of a full body scan for a pat down instead!
Not only do I find the FBS intrusive and an invasion of my privacy and rights, but the radiation levels and my health concerns me too! I also feel that this process very humiliating and a waste of our money!
I have the link to the interview on the CBC website and an article concerning the risks of the scan. The best thing we can do now is inform ourselves! Please pass the following links to all your friends! ——————————————————————————————–
VIDEO: http://www.cbc.ca/video/#/Shows/The_National/ID=1377965699
ARTICLE: http://www.cbc.ca/health/story/2010/01/05/f-airport-scanners-radiation-risk.html
Full-body scans: Exposing the risk
If you went through an airport during the Christmas 2009 and New Year 2010 rush, you would have noticed security was stepped up a notch. Tighter security measures, including a ban on carry-on baggage, were introduced after a passenger on a flight from Amsterdam to Detroit tried to set off a bomb.
As well, the United States announced increased scrutiny for people travelling from 14 countries considered to be sponsors of terrorism or “of interest” to U.S. authorities.
Transport Canada changed its regulation so that people flying into the U.S. are not allowed to bring carry-on bags into the cabin of the aircraft. Exceptions include coats, medication and items for infant care.
Currently, all luggage — checked or carried on — goes through X-ray machines that reveal suspicious objects. Your carry-on bag will be hit with low-level radiation — far less than what you would be subject to for a chest X-ray. You’ll be hit with a bit, too. But you’d have to put your bag through the scanner about 5,000 times to equal the radiation you are exposed to in one chest X-ray. The machines used to X-ray luggage differ from medical X-ray devices in two important ways:
- There is more shielding on airport X-ray machines — the entire belt is shielded; in medicine, the patient table is not shielded.
- Baggage scanners use less radiation because the image does not need to be as clear as it does when X-raying a patient.
While airport workers might be exposed to some radiation, airport security devices must meet federal standards. Health Canada has set recommended levels for radiation exposure.
Radiation exposure
- Mammogram: 30 mrem
- Chest X-ray: 10 mrem
- CT Scan (head and body): 1100 mrem
- Dental X-ray: 10 mrem
- Using natural gas in home: 9 mrem/year
- Air travel per 1,600 km: 1 mrem
- Flight from Vancouver to Halifax (approximately 4,443 km): 2.78 mrem
- Luggage scanner: 0.002 mrem
- Body scanner: 0.01 mrem
The scientific unit of measurement for radiation exposure is the millisievert (mSv). Radiation exposure is also measured by the millirem (mrem). One mSv is equivalent to 100 mrem. The average person is exposed to 3.6 mSv of radiation a year naturally.
That number can vary substantially from location to location depending on elevation, soil and latitude. The higher your home’s altitude, the more background radiation you will be exposed to.
Most of that background radiation exposure — about 2.6 mSv — comes from radon gas.
Get a chest X-ray, and you’ll add 0.1 mSv — or about 10 days’ worth of naturally occurring radiation — to your annual exposure total. Go for a CT scan of your abdomen and pelvis, and your total is boosted by 10 mSv — or about three years’ worth of naturally occurring radiation.
At the airport, your exposure to radiation is barely boosted. All passengers must pass through a metal detector, which uses pulse induction technology to scan you for items you shouldn’t be taking onto an airplane.
The machine sends short powerful bursts of current through coils of wire. Each pulse generates a magnetic field. When the pulse ends, the magnetic field collapses, leading to a sharp electrical spike, which causes another current to run through the coil. The detector creates anywhere from 25 to 1,000 pulses per second.
If a metal object passes through the detector, the pulse creates an opposite magnetic field in the object. That makes it take longer for a pulse to disappear — creating an echo, similar to the way sound hits a hard surface leading to a noticeable echo.
If the machine beeps, a security guard will use a hand-held scanner to try to pinpoint the location of the item that caught the machine’s attention. Radiation exposure here is zero.
However, if you make the metal detector beep and you’re given the option of a pat-down search or a trip through one of those new scanners that are coming to airports in Vancouver, Calgary, Edmonton, Winnipeg, Toronto, Ottawa, Montreal and Halifax this year, you will be exposed to a little radiation.
Those scanners have already been in use at some U.S. airports. They were also tested at the airport in Kelowna, B.C.
Advanced scanning technology
There are two types of enhanced body scanners. One relies on millimetre wave technology, which uses extremely high frequency radio waves to produce images. There is no radiation, but the scanners can “see” through your clothes, revealing not just concealed weapons but breast implants, colostomy bags and any body piercings you might not want people to know about.
The image quality resembles a fuzzy photo negative. The software can be enhanced to obscure the face. The U.S. Transportation Security Administration (TSA) says the scanners it has tested produce 10,000 times less energy than a cellphone transmission.
The other enhanced body scanner uses a technology known as “backscatter.” Low-level X-rays produce the same kind of “see-through” images that millimetre wave technology produces. Backscatter images resemble a chalk etching. Again, the technology can be adapted to obscure faces.
The TSA says you will be exposed to as much radiation undergoing a backscatter body scan as you would during two minutes of your flight. The high altitude of a cross-Canada flight exposes you to about 0.03 mSv of radiation. You’d need to fly across the country 100 times to equal the amount of radiation you are naturally exposed to in a year.
Manufacturers of both types of machines insist that images cannot be stored, broadcast or re-transmitted. After the person passes through the machine and the person has been cleared, the image is gone forever.
Last October, Canada’s privacy commissioner said her office is satisfied that the scanners are not a threat to people’s privacy.
While Health Canada says the scanners are safe, it also recommends caution when it comes to any kind of radiation exposure. In a section of its website dealing with environmental and workplace health, the agency notes:
“It is emphasized that any irradiation may involve some degree of risk … All doses should be kept as low as reasonably achievable, and any unnecessary radiation exposure must be avoided.”
The clamor to ramp up airport security with invasive naked body imaging scanners has nothing to do with ensuring the safety of travelers. Rather it is part of an ongoing incremental push to break the will of the people and encourage mass subservience and meek obedience.