As Botswana celebrates the 50th anniversary of its independence Rajan Datar explores the southern African state with a tiny population, just 1.8 million people living in a country the size of France. At independence Botswana was one of Africa's poorest countries, today it is one of the continent's richest - wealth principally generated by diamond mining and more recently by high end tourism and beef production. In this special programme Rajan journey's through the country from its roots to its 21st century ambitions.