HARDtalk's guest in London is New Zealand's Prime Minister, John Key. His first term in office has been a baptism of fire. First came a prolonged economic slowdown, and in recent months his government has dealt with a string of disasters, including a mining accident and a devastating earthquake in Christchurch.

Jeanette Winterson was a twenty-something literary sensation back in the 1980s. Her first book, Oranges Are Not the Only Fruit, a raw, taboo-busting semi-autobiographical novel about being adopted, being abused, and being a lesbian. In the years afterwards, the author railed against those who would ask her - how much of it is true, how much of it really happened? But now Jeanette Winterson appears to have answered her own question. She's just published her memoir. And the truth, she writes, is even more painful.