Before this BBC podcast kicks off, I'd like to tell you about some others you might enjoy.

My name's Will Wilkin and I Commission Music Podcast for the BBC.

It's a really cool job, but every day we get to tell the incredible stories behind songs,

moments and movements, stories of struggle and success, rises and falls, the funny, the ridiculous.

And the BBC's position, at the heart of British music

means we can tell those stories like no one else. We were, are and always will be right there

at the centre of the narrative. So whether you want an insightful take on music right now, or a

nostalgic deep dive into some of the most famous and infamous moments in music, check out

the music podcasts on BBC Sounds.

Hello and thank you for downloading the more or less podcast. We are your guide to the numbers

in the news and in life. And I'm Tim Harford.

Few things in nerd land are as vexing as huge troves of medical data.

Big medical data sets pose an enormous risk to personal privacy.

They're so sensitive and it's surprisingly easy for bad actors to abuse them.

But big medical data sets also hold out an enormous opportunity.

There's so much we could learn from them about

how to provide better treatments or simply to organise healthcare more effectively. So how can we

seize this opportunity without unleashing a privacy apocalypse? This fellow has an idea.

My name is Ben Goldwecker. I'm Prof Prophet Oxford. I run the Bennett Institute for Applied

Data Science. Ben made his name as a newspaper columnist and the author of Bad Science. Now he

runs a data lab at Oxford University. Let's start by explaining the exceedingly tricky

double-edged conundrum he's been grappling with.

...