Iarpa, the intelligence community’s way-out research shop, wants to know where you took that vacation picture over the Fourth of July. It wants to know where you took that snapshot with your friends when you were at that New Year’s Eve party. Oh yeah, and if you happen to be a terrorist and you took a photo with some of your buddies while prepping for a raid, the agency definitely wants to know where you took that picture — and it’s looking for ideas to help figure it out.

In an announcement for its new “Finder” program, the agency says that it is looking for ways to geolocate (a fancy word for “locate” that implies having coordinates for a place) images by extracting data from the images themselves and using this to make guesses about where they were taken.

More and more digital cameras today don’t just take pictures but also capture what is called metadata — often referred to as data about data — that can include everything from when the picture was taken to what kind of camera was used to take it to where the it was taken. This metadata, often stored in a format called EXIF, can be used by different programs to understand different aspects of the image — and also by intelligence analysts to understand different aspects of the user who took it, and the people who are in it. Like who they are, what they are doing, and where and when they did it.

Sounds great! But there are a few small problems.

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