Maritime Security: Big Brother is Millimeter Waving You - for your own protection

Reported as New York to Conduct Explosives Detection Test:

The Transportation Security Administration (TSA), in partnership with the New York City Department of Transportation (NYC DOT), will begin testing advanced explosives detection technology today as part of the agency's Security Enhancement and Capabilities Augmentation Program (SEACAP). During the three-week pilot program, TSA will conduct explosives screening on passengers boarding the Staten Island Ferry at the St. George Terminal in Staten Island using passive millimeter wave screening equipment. The purpose of the project is to test the performance of new technologies to detect explosives while maintaining efficient passenger operations for high volume commuter ferries.

Handheld imager from here.