The Coulter Scanner?

It's a step forward for airport security:

Prague’s airport is testing a technology that could eventually end the need to chug that bottle of water before going through the security check.

A new device, called the Emili 1, uses microwaves to detect benign liquids from hazardous ones that could be used for terrorism. Ideally, it could speed up onerous security lines at airports, make flights safer and — eventually — lead to the elimination of the ban on outside liquids.

Next, a scanner to separate dangerous swarthy young males from benign ones?