We need to go through one scan or another at the airport - whether it's the WTMD, backscatter or ultrasound, we need to check for guns, explosives, etc.

Do I support this technology being used on crowds without specific knowledge or consent over how/where it's used or what it's looking for? No way.

Do I support this technology as a passive, non-radioactive alternative to backscatter, with smudged outlines of people instead of clear profiles, and perhaps able to scan multiple people simultaneously to improve checkpoint flow? Well, perhaps, but I need to know more.