Check out Technology Review's short article on advancements in facial recognition technology at: http://www.technologyreview.com/Infotech/21384/?a=f. While this technology will be extremely helpful for security and law enforcement applications, it could also be leveraged to improve video search algorithms, by automatically extracting individual names from videos. I can imagine a system whereby the individual's name is extracted and perhaps weighted by how long they appear in the video. I'm still waiting for technology that automatically recognizes logos, trademarks and other visual cues from videos ... features that would be much used by CI and Media Monitoring applications.