Bart Weetjens is a product designer, who focuses on innovative technologies for developing countries. He came up with the idea to train rats to detect landmines in Africa. For the past 6 years, he’s been living in Tanzania with his family and colleagues, training giant pouched rats to detect landmines and screen for Tuberculosis. There are about 55 million landmines left behind from previous wars which can kill 40 to 50 people per day. Thanks to his work developing countries no longer have to rely on foreign expertise for mine clearance; instead they now have the power to control it themselves.