Martin Buser and his son Rohn crossed the burled arch today with their lead dogs side-by-side, a photo finish that was too close to call from the sidelines.While the standings on Iditarod.com say 22-year-old Rohn finished 1 second ahead of his four-time champion father, the time sheet I watched the Busers sign says they tied at the finish.DeeDee Jonrowe, a friend of the Busers who helped care for the dogs as they arrived, said she’s never seen anything like it.Read more here: http://community.adn.com/adn/node/160374