NPR is using Flickr to add a little social-media mojo to a story it broadcast this afternoon on All Things Considered. It’s a simple hack that any news organization could use. They’ve set up a Flickr group called “Industriosphere” to accompany a story called, “When Traffic Lights Make Us Stop and Think” about how man-made things work. (I said it was NPR.) Listeners were invited to add photos to the Flickr group’s pool.