Actually, most forms of color blindness is NOT due to a defect in the eye, but in the visual cortex. I learned about this in graphic design for my color theory class. When you look at a color for awhile, and then look at a white surface, the after-image will be a specific color. Whether you're color blind or not... that after-image coloring is the same. So red and green result in a different after-image color -- even if you're red/green colorblind.
Anyway, yes, having red/green perception does enable you to see subtle changes in skin tone, etc., but the idea of TSA agents wearing them is a bit frightening. This is the same agency that up until recently was irradiating its own clients, refusing to disclose the amount of radiation, and causing cancer to its employees. They also have been frisking children and grabbing people's balls... they're totally incompetent. I'd rather not give them special "x-ray glasses" so they can misuse those as well, saying they saw something nobody else could and that's why you're now getting a lubed finger in your private parts.
Other than that, Rock on. Good science.
Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/JAd5kWwlb3Y/story01.htm
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