Thanks for the reply. I don't know if wikipedia is the best source, but talking about health risks, it states: > A team led by Los Alamos National Labs found t

Thanks for the reply. I don't know if wikipedia is the best source, but talking about health risks, it states: > A team led by Los Alamos National Labs found that although the forces that terahertz waves exert on double-stranded DNA are tiny, in certain circumstances resonant effects can unzip the DNA strands, tearing them apart. This creates bubbles in the strands that can significantly interfere with processes such as gene expression and DNA replication. [1] Unzipping DNA strands in certain circumstances sounds pretty harmful. I understand theoretically why millimeter waves are lower risk than backscatter x-rays, but it seems to me that there still are risks. In my opinion, before sending the population through these things, we need studies of their long-term effects from real-world exposure, not just theoretical reasoning about why the rays are most likely safe. [1] https://en.wikipedia.org/wiki/Millimeter_wave_scanner#Possible_health_effects https://en.wikipedia.org/wiki/Millimeter_wave_scanner#Possib...