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.