Thatcher biography shortlisted for prize

The winner of the UK's leading award for non-fiction books, the Samuel Johnson Prize, is being announced on Monday evening.

Six books are in the running and they cover a raft of subjects - including bees, Roman Britain and Afghanistan, the story of an Italian poet, and a book about First World War cemeteries.

Nick Higham spoke to Charles Moore about his authorised biography of former British prime minister Margaret Thatcher.