Stephen Sackur speaks to Fatima Bhutto, who was born into a family dynasty steeped in politics and power. Her grandfather, Zulfikar Ali Bhutto, was Pakistan's former Prime Minister. He was hanged more than thirty years ago and tragedy has stalked the family since. Her father, Murtaza, was murdered and so too was her Aunt Benazir. Fatima has now written an account of her family's history. The Bhutto name lives on, but does it matter in today's Pakistan?