An anonymous reader writes: Terrorist organization ISIS has been in the news a lot lately for their hostile activities in Iraq and Syria. They've also been very active online, posting propaganda and photos on various social networking sites to try to recruit more members. Frequently, they'll have pictures of themselves in nondescript locations — but even carefully selected images give clues to a real location. Citizen journalists at Bellingcat analyzed a group of these photos, comparing buildings and bridges in the background to images from Google Earth. With very little to go on, they were able to pinpoint the location of a terrorist training camp.