I have written on this previously here. The privacy issues here are that the technology does not have the ability to blur the genitals of the people that it screens. More accurately, it does have the ability to blur the genitals but the powers that be have decided not to. So, in essence the person sitting behind the monitor will be viewing you in all your glory. I wonder if they are taking volunteers for these screening positions.
The picture leaves very little to the imagination. It is worth noting that in this picture I can make out what appears to be bones in the lower legs and the knees of the person being screened. The idea is that the x-rays used are at the lower end of the spectrum and would require up to 10,000 screens before you would be in danger of excessive radiation exposure.
So, if you are a domestic traveller leaving Melbourne Airport over the next six weeks you may well be asked to test new x-ray scanners and not only be exposed to the x-rays but be exposed in other ways too.
The new X-ray backscatter body scanner has been described by some critics as a "virtual strip search". Looking at the image above you can see why. The trialling authorities have made it clear that they are not going to blur the images of the genitals. However, the technology has been set up so that faces are automatically blurred.
The blurring of the faces is an attempt to try and avoid claims that the technology violates privacy. Probably more important is that there are very explicit regulations in place with respect to the storage and access to any images that are saved. Even with faces blurred, the mere thought of these images appearing online in some porn site would bother many people.
The current procedures are that once a person walks through the scanner and they are clear of any nasty stuff like explosives, the screener presses a button and the image is automatically deleted. Sounds fair enough assuming that the screener is deleting the images.