Sandia National Laboratories has developed a bot that can rescue trapped miners or deliver supplies as it is immune to gas, flooding, killing fumes and possible collapsed buildings. Gemini-Scout is four feet long and 2 feet tall and is equipped with gas sensors, and two cameras for locating survivors and scoping out the area. It was designed to go ahead of its user and is steered by an Xbox 360 game controller, making it simpler to learn. NIOSH funded the project that Jon Salton and team believe could be available by the end of 2012.