The doomsday counter by James Fransham, Lloyd Parker, Robert Jones and Phil Kenny

The Economist's defense correspondent in 2013 revealed to the world how close Iran was to building a nuclear bomb. But it took a 3-page article to explain. So our graphics editor intricately transposed the complex specifics into images. The result was published as a clear, concise chart -- but a static one, even though the issue is dynamic: how long until Iran has it. So our video-graphics editor and data editor carefully worked together to take the infographic and "bring it to life" through animation and audio.