In 2012, The University of Coimbra in Portugal has taken its free Husky and turned it into an clever little autonomous mobile mine detector.
The team at Coimbra added sensors for navigation and localization (GPS, stereo vision, and a laser), as well as (more importantly) a customized two-degrees-of-freedom arm equipped with both a metal detector and a ground penetrating radar system.
Humans are able to clear out about 100,000 mines every year, giving us about A THOUSAND YEARS before we'd be able to clear up all of them. That's why we need robots.