Israel Aerospace Industries (IAI) has presented SAHAR – an autonomous robotic route clearance system. The system handles functions such as environmental terrain mapping, surveillance, removal of roadblocks, and disposal of IEDs (Improvised Explosive Devices).
http://www.israeldefense.com/?CategoryID=483&ArticleID=2909
http://www.youtube.com/watch?v=KayKf7Rbn9c