The Documentary Podcast

How Cambodia's contemporary music scene is creating a new golden era for a country recovering from the dark years of Pol Pot's rule.

eading structural engineer and designer Cecil Balmond goes beyond the well known histories of three celebrated monuments: Stonehenge, the Taj Mahal and the Great Pyramid, to reveal the hidden geometry at their cores.

Linda Pressly follows the migrants heading north through Guatemala into Mexico – despite the dangers of kidnap by the notorious Zetas gang.

Have you bought a diamond recently? Would you really know where it came from? Assignment goes into Zimbabwe's Marange diamond fields and uncovers evidence of torture camps and wide-scale killings.

Shaken baby syndrome - the sudden and violent shaking of an infant which often results in death - was once believed to be virtually a medical diagnosis of murder. But as Linda Pressley reports from the United States for Assignment, there's now growing disquiet about miscarriages of justice after such deaths.

Soldiers who have killed in war at close quarters talk about how it affects them today. They talk frankly about their feelings before, during and after. And they reflect on whether humans are "natural" killers or whether they have to be trained to go against their instinctive repulsion.

A year ago, the Deepwater Horizon rig exploded in the Gulf of Mexico creating a huge oil spill. In the aftermath, the BBC's Robyn Bresnahan spent a month in the American state of Louisiana with fishing families to see how they were affected. She found many communities on the brink, with fishermen fearing they would never fish again. One year on, she has returned to meet with some of the same families.

A committed republican and ardent monarchist examine the case for and against monarchy as a form of government. Part two looks at America - whose very creation involved rejecting kingship - and those who prefer a crown to a republican constitution.

In this week's Assignment Sue Lloyd Roberts reports from Saudi Arabia where custom and religion are keeping women covered up and largely hidden. But behind the scenes Sue finds women pushing for change.

John Mohammed Butt travelled to Kabul in the 1960s. Rather than finding drugs and hedonism, he discovered a tribal culture that transfixed him. Now a trained Imam and Muslim, he has dedicated his life to spreading peace in South Asia. But as reporter Nadene Ghouri discovers in this week's Assignment, that message has made him a target for militants.