Because people still largely feel that the TSA and DHS are necessary, ignoring the irony that wr're still living in a post-9/11 fear-driven society where Bin Laden still literally terrorizes us.
TSA/DHS are a joke, and if you think they're honest and/or necessary, I suggest you follow the money. I'd say start with the companies who make full body scanners (millimeter wave, which uses ionizing radiation and causes cancer (ref: http://en.m.wikipedia.org/wiki/Backscatter_X-ray ), but that's a whole other can of worms.)
I'd say start with the companies who make full body scanners (millimeter wave, which uses ionizing radiation and causes cancer (ref: http://en.m.wikipedia.org/wiki/Backscatter_X-ray ), but that's a whole other can of worms.)
Small correction: millimeter wavelengths are non-ionizing. X-rays are much smaller (0.01 to 10nm - Wikipedia).
I don't like the full body scanners either, but you take on a significantly larger dose of radiation by simply looking out the window of the plane while flying than you do walking through the scanner.
There are lots of things wrong with the scanner...radiation is a very small part of it.
TSA/DHS are a joke, and if you think they're honest and/or necessary, I suggest you follow the money. I'd say start with the companies who make full body scanners (millimeter wave, which uses ionizing radiation and causes cancer (ref: http://en.m.wikipedia.org/wiki/Backscatter_X-ray ), but that's a whole other can of worms.)