This sounds cool:
Defense contractor Northrop Grumman won a $6.7 million contract to develop brain-wave binoculars.
The Defense Advanced Research Projects Agency, better known as DARPA, awarded the contract to develop intelligent binoculars that would help soldiers detect threats from miles away. The defense contractor says electrodes placed on the scalp will record the user’s electrical brain activity. Responses will train the system over time to recognize actual threats at greater distances than conventional binoculars.
The system would use a custom helmet equipped with wide-angle binoculars capable of producing high-resolution images and electroencephalogram, or EEG, electrodes. Researchers hope to tap into the brain’s ability to spot patterns and movement.
The article doesn’t say how it works, and seems to imply that the device would tap into subconscious brain activity. That would definitely be cool, but it seems more likely to me that the brain-wave monitoring is used to identify threats that the wearer is aware of, and then a machine-learning algorithm uses that information to learn to recognize threats from video input.