Stashed in a Smithsonian storage building in this Washington suburb are some of the engineering wonders of the space race.
Fifty-two of these state-of-the-art machines are already scanning passengers at 23 U.S. airports.
In the light of this weekend’s bomb scares, all talk now is of how the security of air cargo can be improved.
Privacy advocates worried about x-ray scanners making their way around U.S. airports may be surprised to know the technology is also making its way onto America’s streets.
In some countries the laws have defined pornography as how much and what bits of flesh are exposed.
The technology could be deployed at airports and on battlefields.