There is a wide variety of rewards to complete body scanners.
1 of the main one's is the volume of time which it takes to scan which is a lot less than 20 seconds per individual. One other main benefit is the fact that the scanners are non-contact. Many people resist being searched by airport staff and consider it improper. Contact searches can also be open to misuse.
Given that the technology is indeed new there are several grey areas which include potential health effects. This type of scanner hasn't been around long enough to evaluate if there is any potential harmful results. Scanners including X-Rays and white light scanning are considerably more tried and tested and thus more universally recognized. But the nude pictures that are generated by these scanners evoke a sense of doubt in the general public.
It is also considered that these scanners have the ability to benefit many other industries as well. Courthouses, government building as well as other official buildings are also considering applying this technology.
Not many are convinced of the benefits of whole body scanners as those people who are willing to have identified approaches to conceal explosive equipment in all sorts of bodily crevices that could be overlooked by the full body scanners.
This leads you to consider what the development will probably be from nude full body scanners, will everyone need to go through obtrusive strip searches?