How the BBC radio programme Letters without Signature, which ran from the 1950s to the 1970s, provided a voice for the citizens of the former communist state of East Germany.

Thirty years after the fall of the Berlin Wall, the BBC's John Simpson goes back to examine his reports and consider why history did not turn out quite the way he expected.

Documentary series on the fall of the Iron Curtain and its legacy.How the collapse of communism affected people in the 'socialist paradise' of East Germany.

Documentary exploring the story of the Berlin Wall, uncovering a world of flawed heroes and heroic villains, compromised victories and sad defeats.