Discover 11,128,835 listings and 280,439 playable programmes from the BBC
15 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
The ancient world was obsessed with the idea of secret knowledge. This episode looks at how in the Middle Ages it was thought alchemy could unravel the secrets of nature. Show more
15 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
A look at the purpose and power of secret objects and knowledge in different religions. Show more
15 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
This episode traces the development of the 'state secret'. Tiffany visits the National Archives as new MI5 files are disclosed for the first time. Show more
15 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
Transparency, the apparent opposite to secrecy, is the panacea, having acquired a moral urgency. But what have we lost in abandoning our secrets? Show more
15 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
Is a culture of secrecy within the family harmful, or can it offer a necessary form of protection? Show more
