On display is equipment for the detection and demolition of explosive materials, sophisticated x-ray machines for a variety of purposes, devices for fingerprinting and for electronic surveillance, arms that paralyze rather than kill, and weapons of all sorts, including machine guns capable of over 1,000 rounds a minute. A feature of the exhibit is the selection of amphibious tanks, highly maneuverable vehicles effective against maritime smuggling operations. Another is the group of robots that can detect and neutralize bombs.