I've just discovered that there is such a thing asMillimeter Wave Security Cameras. Using extremely high frequency ("millimeter wave") radio frequency bands, security personnel can use these devices to look directly through clothing (the image on my sidebar was captured by one of these). They were initially deployed in Israel to spot suicide bombers and have since been incorporated into your friendly neighborhood airport. One wonders if this will bring an influx of voyeurs into the security profession. The picture on my sidebar is an image snapped by one of these cameras. Five years from now, you will get emails in your inbox that read: lesbians dirty sex hidden cam millimeter wave.