iRobot does much more than keep your floors clean. They also manufacture the PackBot, a small teleoperated UGV designed to be rugged yet effective. Most recently, PackBots have been deployed to the Fukushima Daiichi nuclear power plant in Japan to measure radiation and assess damages. Remote controlled UAVs and construction equipment have also been deployed to aid in the cleanup and containment. An interesting departure from Explosive Ordinance Disposal (EOD) and counter-insurgency applications.