The Butterfly Effect

Dan Southerland: In July last year, a butterfly landed on my shoulder while I was taking a break from my office for a few minutes one afternoon to talk business with a colleague. I was sure the butterfly would soon fly off. We were walking through an L Street canyon near 19th Street NW that was surrounded by granite, concrete and glass. I had never seen a butterfly in this part of the city before. Now I had one clinging to me. It migrated to my shirt collar and stayed there.