sathnam sanghera, welcome to hardtalk. it's nice to be back. it's great to have you back, and you are back with a new book, which i have here — empireworld. it's your take on just how massive the impact of the british empire was and still is on the world. you certainly don't undersell your idea, it's subtitled how british imperialism has shaped the globe. i really do believe that. i think the british empire explains so much about people's daily lives around the world, tea drinking in india, in britain, patterns of tax avoidance, even the bbc world service used to be known as the bbc empire service. it explains so much about our daily news. you've just come back from guyana — there's a border dispute there that goes back to empire, israel—palestine, a dispute that has its roots in empire, but also, there's a gap between the way in which britain sees itself and the world sees britain through the prism of this history, and i think we need to remember what we did before we go around pontificating on things like democracy and the environment a