My BS detector also buzzed repeatedly at the word "harmless" and the sentence about deleting images of passengers' bodies--the fact that the article went out of its way to insert those words says to me that 1) there will be at least some risk involved in the "harmless radio waves" and that 2) the images of passengers' bodies will prove to be of interest, ranging from comedic to prurient, for at least a few screeners who will figure out how to store them.