{"id":3739,"date":"2012-08-06T21:44:27","date_gmt":"2012-08-07T02:44:27","guid":{"rendered":"http:\/\/jimbovard.com\/blog\/?p=3739"},"modified":"2012-08-06T21:44:27","modified_gmt":"2012-08-07T02:44:27","slug":"tsa-screening-machines-safer-than-hiroshima","status":"publish","type":"post","link":"https:\/\/jimbovard.com\/blog\/2012\/08\/06\/tsa-screening-machines-safer-than-hiroshima\/","title":{"rendered":"TSA Screening Machines: Safer than Hiroshima"},"content":{"rendered":"

Except for maybe causing cancer, the TSA scanners are safe – or as safe as the TSA is honest. The New York Times article on TSA safety controversies<\/strong><\/a> notes, “Most of what is known of the risks of radiation has been extrapolated from disease trends in Japan after World War II.”<\/p>\n

I would love to see the TSA PR campaign to assure people of the scanners safety – with mushroom cloud images with a big smiley face.<\/p>\n

Regardless of health risks, the scanners trample Americans’ privacy and liberty and should be banned for those reasons alone. <\/p>\n

Following is an outtake from the Times’ piece: <\/p>\n

There are 244 full-body \u201cbackscatter\u201d X-ray scanners in use at 36 airports in the United States. They operate almost nonstop, according to the Transportation Security Administration. Other airports use millimeter wave scanners, which look like glass telephone booths and do not use radiation, or metal detectors.<\/p>\n

Most experts agree that as long as the X-ray backscatter machines are functioning properly, they expose passengers to only extremely low doses of ionizing radiation.<\/p>\n

But some experts are less sanguine, and questions persist about the safety of using X-ray machines on such a large scale. A recent study reported that radiation from the machines can reach organs through the skin. In another report, researchers estimated that one billion X-ray backscatter scans per year would lead to perhaps 100 radiation-induced cancers in the future. The European Union has banned body scanners that use radiation; it is against the law in several European countries to X-ray people without a medical reason.<\/p>\n

The machines move a narrowly focused beam of high-intensity radiation very quickly across the body, and David Brenner, director of the Center for Radiological Research at Columbia University Medical Center, says he worries about mechanical malfunctions that could cause the beam to stop in one place for even a few seconds, resulting in greater radiation exposure.<\/p>\n

For security reasons, much about how the machines work has been kept secret. The T.S.A. says the full-body scanners have been assessed by the Food and Drug Administration, the United States Army Public Health Command and the Johns Hopkins University Applied Physics Laboratory.<\/p>\n

But researchers at these institutions have not always had direct access to the scanners in use, and some of the published reports about them have been heavily redacted, with the authors\u2019 names removed. Independent scientists say limited access has hampered their ability to evaluate the systems.<\/p>\n

John Sedat, emeritus professor of biochemistry and biophysics at the University of California, San Francisco, believes that the effective dose could be 45 times as high as the T.S.A. has estimated, equivalent to about 10 percent of a single chest X-ray.<\/p>\n

T.S.A. officials scoff at scientists\u2019 statements that measuring the effective radiation dose received by passengers is very complex, saying that it is not difficult, that the machines are inspected for problems at least once a year, and that they are equipped with fail-safe shutoff systems.<\/p>\n

The machines, though, have had mechanical problems. A recent T.S.A. report said that between May 2010 and May 2011, there were 3,778 service calls concerning mechanical problems in backscatter X-ray machines. Radiation safety surveys were conducted after only 2 percent of the calls.<\/p>\n

In a letter to the federal Department of Health and Human Services dated Oct. 12, 2010, the scientists said that \u201cthe casual nature for maintenance of these devices is alarming to us. These machines are capable of delivering large X-ray doses.<\/p>\n

They added, \u201cHospitals usually check for problems on X-ray machines daily.\u201d<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Except for maybe causing cancer, the TSA scanners are safe – or as safe as the TSA is honest. The New York Times article on TSA safety controversies notes, “Most of what is known of the risks of radiation has been extrapolated from disease trends in Japan after World War II.” I would love to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[682],"class_list":["post-3739","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-tsa"],"yoast_head":"\nTSA Screening Machines: Safer than Hiroshima - James Bovard<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jimbovard.com\/blog\/2012\/08\/06\/tsa-screening-machines-safer-than-hiroshima\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TSA Screening Machines: Safer than Hiroshima - James Bovard\" \/>\n<meta property=\"og:description\" content=\"Except for maybe causing cancer, the TSA scanners are safe – or as safe as the TSA is honest. 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