TSA eliminates all invasive X-ray machines
nbcnews.com
nbcnews.com
The headline is incorrect. The TSA did not eliminate the machines. The machines have been modified to show less detail, that's all.
I heard a TSA agent basically tell a nervous traveller this when I was in the U.S. last: "Oh no, we go rid of those machines, these are totally different -- see it just shows me a picture of where any hidden items are. Not any different than are old metal detectors! Safe as can be!"
Millimeter wave machines still violate your privacy, and still expose you to radiation. But, freedom, amirite?
As it happens millimeter wave machines are a fancy way to say "EHF radio", which is very much non-ionizing and is not known to be harmful.
One caveat is that any radiation beam that the body is not fully transparent to can be harmful at high power, but that is from the heat effect, not anything inherent to the radiation (i.e. it's the same hazard as standing under a heat lamp for too long).
The article does not provide much reassurance that this time will be different. Who is making the determination about "potentially forbidden items"? An AI?
Forget trimming the leaves on this tree - we need to find some way to hack at the roots and the trunk.
Ref: http://www.technologyreview.com/view/416066/how-terahertz-wa...