Roland Piquepaille writes, "It's unusual to find a news release as fascinating as a thriller. But this is the case with this story about the adventures of 'Mighty Mouse', a robot used at Sandia National Laboratories to free a stuck deadly radioactive source and to safely return it to its insulated base. It took four days for M2, as this robot is also called, and its operators, to achieve the task. During these four days, the 600-pound, five-foot-long robot M2 was frozen by radioactivity and some of its components have been replaced by parts found at Home Depot." For more on the incident and a photo of the robot, see Roland's blog.