Exploration: Too much of a colonial thing?
Is exploration always in good taste? Ben Fogle and Afua Hirsch discuss the story of Benedict Allen, the British explorer who ventured to Papua New Guinea in search of a tribe. There's been a lot of interest in his trip, but also a lot of debate over the way in which his expedition has been reported on. (Image: A 1719 map, Credit: Three Lions/Getty Images)