I recall a Danish software company is currently researching in how to develop a way to make search engines identify different kinds of identities in pictures.
For example - if you have a picture of a certain person and you are about to do some research, this software will then be able to search the internet for any matching faces etc.
Sounds kind of incredible if you ask me - Big brother is certainly watching you, you would be tempted to say.
However, I am not too sure what either the company is called or the project. Think it should provide a public search function at Google, and another version for governments.
Besides from that, I just realized that my answer in this post is completely worthless to you and to this topic.
Your mind is like a parachute - if it isn't open, it doesn't work