This article from UPI tells all about a Pit Viper Bot that cleans up underground radiation equipment and storage tanks and keeps humans out of harm's way. Pit Viper is basically a manipulator arm that is attached to the end of a back hoe and can be remotely operated from up to 200 feet away. The pit viper can also detect and map radiation levels. Pit Viper was developed by engineers at the Department of Energy's Pacific Northwest National Laboratory or PNNL in Richland, Washington. You can see pictures here. You can see some movies of the pit viper cleaning out a pit here. Did you know that pit viper snakes can detect radiation? Maybe that's why they named this bot pit viper?