Does L-3 offer reduced/eliminated skin cancer risk from uncalibrated back-scatter machines?
Short answer is yes. Backscatter is X-Ray and some in the medical field claim that any X-Ray energy represents risk, even though we all get X-Rays at the doctors’ and the dentist. This just adds to that mix.
L3 system operates in a different band on the spectrum and I haven’t heard any of the smart guys say that they had any safety concerns. I am not an expert, but the experts that I have talked to haven’t expressed concerns.
I travel frequently and have metal knees. I avoid the magnetometer whenever I can and pick the L3 whenever I can. I do go through the Rapidscan when I have to. (KC only has Rapidscan, so I use that outbound. Most return trips I can use a L3 machine.
The Rapidscan machine is the flat panel that you turn and face. The L3 machine is the one where you stand in a cylinder and the scanner revolves around you.