"BOSS stands for Biometric Optical Surveillance System, and it is a crowd-scanning program that has been in development by the Department of Homeland Security (DHS) for almost three years now.
Whereas in the beginning most people actually believed the DHS was there to stop cave dwellers with terroristic tendencies, it is now completely clear that its primary mission is to protect the oligarchs and political criminals from domestic dissent. For example, the New York Times notes that:
In a sign of how the use of such technologies can be developed for one use but then expanded to another, the BOSS research began as an effort to help the military detect potential suicide bombers and other terrorists overseas at “outdoor polling places in Afghanistan and Iraq,” among other sites, the documents show. But in 2010, the effort was transferred to the Department of Homeland Security to be developed for use instead by the police in the United States."
http://libertyblitzkrieg.com/2013/08/21/meet-boss-the-department-of-homeland-securitys-facial-scanning-program/