An uncomfortable fact of modern security is that too many people go through transit hubs and to public events for all of them to be screened both efficiently and thoroughly. As a result, there has been a lot of attention focused on producing automated systems that screen crowds without the need for human intervention.Automated biometric scans have serious limits, however, in that they can only identify people who have already been classified as threats. The Department of Homeland Security is hoping to overcome that limitation by automating the identification of individuals whose behavior suggests they pose a threat via a program dubbed "Hostile Intent."
