[pacelvi]

The Gamma-Ray device Customs uses is called VACIS.

Here is the website of the vendor:

http://www.saic.com/products/security/mobile-vacis/

Here is an article on US Customs' own site from 2000 stating they're using these things.

http://www.cbp.gov/custoday/mar2000/hitec.htm

[Indy Pendance]

It never ceases to amaze me, the diverse knowledge on FR.