No, that's not the distinction I'm trying to make. The NYPD scanners, as best I can tell, are PASSIVE scanners which means they emit NO radiation (any moreso t

No, that's not the distinction I'm trying to make. The NYPD scanners, as best I can tell, are PASSIVE scanners which means they emit NO radiation (any moreso than your digital camera "emits radiation"), ionizing or non-ioninzing. They simply measure the terahertz emissions (and reflections thereof) of other objects -- they do not introduce their own terahertz waves. I'm not defending the scanners (obviously)... I just want the case against them to be clear and sound.