The radiation is dangerous? lmao, it'd be weaker than an xray machine because the radiation doesn't even penetrate the skin. Xray machines are already completely harmless; you can potentially have an xray a day and not get radiation poisoning. It's only the radiologists that need to be careful because they get exposed to the radiation many times a day when on the job. As for the scanners from a moral point of view, I suppose it's not ideal having scans of children, but if they don't, terrorists or drug traffickers will start forcing children to be the drug mule or bomb carrier. It may seem like an invasion of privacy, but the people working on these jobs would scan hundreds of people in a day, so the novelty of looking at naked people would wear off pretty quickly. A pretty obvious thing that they could do would be to make a mens line and a womens line both with security of their corresponding gender (men for men, women for women). As for the pat downs, I reckon that if they get male security to pat down males and female security to pat down females, there shouldn't be a really big problem.