More or Less: Behind the Stats - Missing planes

Could Bayesian statistics find Flight MH370 from Kuala Lumpur to Beijing? This niche form of statistical modelling has been used to find everything from submarines to missing people. More or Less explores how it was used to locate the wreckage of Air France flight 447 from Brazil to France which disappeared in 2009. This programme was first broadcast on the BBC World Service.

Start the Week - Decision-making with Daniel Kahneman and Michael Ignatieff

Tom Sutcliffe discusses how we make decisions with the Nobel prize-winning psychologist Daniel Kahneman. Moral choices in politics can be a complicated business, according to the academic and former politician Michael Ignatieff, who explores whether the age of international intervention is over. Doctors work under the oath 'do no harm', but the neurosurgeon Henry Marsh says the decision whether to operate on a brain is rarely that simple. High emotion can cloud your judgement and the writer Lisa Appignanesi looks back at sensational crimes of passion to ask how far the perpetrators were responsible for their actions.

Producer: Katy Hickman.

More or Less: Behind the Stats - Mailbox edition

Your questions answered - Do the Maasai in Africa number one million? Is it true that a quarter of Americans do not know the Earth goes round the sun? Are half of Tasmanians innumerate and illiterate? Plus, Do the 85 richest people in the world hold the same amount of wealth as the poorest half? This programme was first broadcast on the BBC World Service.