Detecting Danger - Africa's Giant Rats

Africa's giant rats are the size of a cat and can be trained to detect landmines by smelling them. Giant rats are clever, and they learn fast. Their sense of smell is better than a dog's, they have more stamina, and they're a lot cheaper to train. This documentary follows Miss Marple, who was born in a training lab and who goes through a year's training before being sent on her first mission to Mozambique.