Crossing Continents episodes available now on BBC iPlayer

An ex-heroin dealer returns to the mountain hideout where he received drugs rehabilitation

Investigating the sixth trial of a black man over the murder of four people in Mississippi

Are Rwandans in France and Germany controlling a deadly African militia?

Magdi Abdelhadi explores what kind of Egypt President Mubarak will leave when he dies.

The young gangsters in Vancouver who are building a multi-billion dollar drugs industry.

David Goldblatt reports from a small town in India that is nurturing academic excellence.

Lyse Doucet reports on the US army's new counter-insurgency strategy in Afghanistan.

Linda Pressly investigates the burgeoning relationship between Venezuela and Iran.

Grant Ferrett investigate claims that Sudan is sliding back to civil war.

Humphrey Hawksley retraces an extraordinary journey undertaken by Graham Greene.

Bill Law investigates if Pakistani youngsters are in danger of joining the Taliban.

Lucy Ash investigates the treatment of women in Chechnya.

Mukul Devichand reports on tensions building up between Malaysian ethnic groups.

Linda Pressly investigates the housing crisis in Cuba.

How Muncie in Indiana reflects the impact of the economic crisis on the US middle class.

Lucy Ash travels to the heartland of Thailand's Red Shirt protesters.

Matt Prodger examines the effects of organised crime and corruption in Croatia.

Michael Montgomery reports on hidden alleged atrocities in Kosovo.

A report from Swaziland, where children are learning to read and write in informal schools

Peter Greste visits the Kenyan tribespeople under threat from a hydro-electricity project.

Examining an Israeli TV comedy that sees the funny side of Arab lives in the Jewish state.