If you indulge in the occasional television crime drama like most of us do, you've no doubt seen some high-tech investigative tools in action. Incredibly sophisticated video facial recognition is one that's commonly featured: Investigators watch live, grainy security footage, zoom in on a suspect's face, instantly snap it into high-resolution and immediately match the face to a criminal's photo in a massive database. But is that super-advanced level of technology realistic? While real-time video facial recognition remains in its infancy, the development of deep learning techniques -- part of the machine learning family -- is advancing the technology at a rapid pace. Deep learning has also fueled advances in a host of other artificial intelligence and cognitive computing applications for intelligence agencies.