Start the Week - 29/03/2010

Andrew Marr talks to Lionel Shriver whose new book 'So Much For That' looks at ageing, illness, money and asks 'how much is one life worth?'. Journalist and author, Lionel Shriver's book 'We Need to Talk about Kevin' won the Orange Prize in 2005. Animal behaviourist Jonathan Balcombe discusses the inner lives of animals; journalist Victoria Clark talks about her new book 'Dancing on the Heads of Snakes' about the turbulent past and troubled present of Yemen and Heather Brooke discusses her role in exposing the scandal of MPs' expenses.