However, if the backscatter system operates correctly then the amount of radiation exposure is really quite small compared to the amount you'd receive on the actual flight.
Very true, but the danger from it is still about the same tiny magnitude as the danger from terrorists without the x-ray system.
I wouldn't say entirely uneffected, but I do think the reduction is very small. The point is, though, that even if we were to assume the machines were 100% effective the end result would be to be spending money to not make anyone any safer.
Very true, but the danger from it is still about the same tiny magnitude as the danger from terrorists without the x-ray system.