Evan Williams visits the Zabbaleen, a Coptic Christian community in Cairo living and working in rubbish in ghettos overrun by rats, who claim that they are treated as second-class citizens.
Aidan Hartley reports from the Sonoran Desert in Northern Mexico, crossed every day by thousands of illegal immigrants from Central and South America, desperate to reach the USA.
Kate Seelye reports on the consequences of a total ban on abortions, with women scared to visit hospitals and doctors afraid to carry out life-saving operations on female patients.
Sam Kiley discovers a nation where political dissent is stifled, corruption is rife, and where little of its huge wealth reaches a population racked by poverty, alcoholism and suicide.
Ramita Navai finds out what it's like to live in this poor, extremely overpopulated, flat country on the front line of climate change.
Nima Elbagir meets an Arab militia accused of being an important element of the Janjaweed, blamed for the atrocities in Darfur.
Sam Kiley finds Israel and Hamas on a collision course, each new 'incursion' or 'terror attack' seemingly driving them on towards outright war.
Evan Williams visits the only country in the world to recognize Voodoo as a state religion.
Jenny Kleeman reveals how the record high price of gold brought about by the global financial crisis is affecting some of the earth's most isolated people.
Aidan Hartley finds the government, UN and NGOs all refusing to acknowledge the high birthrate as the major cause of poverty, violence, homelessness and pollution.
Ramita Navai reveals that hundreds of people have been killed for body parts to be used in traditional medicine and meets a man who admits to torturing and killing people as part of his trade - as a 'healer'
Jenny Kleeman investigates the allegations varying from fraud to physical and sexual abuse being faced by some of Kerala's 3,000 holy men.
Aidan Hartley reports on the continuing bitter ethnic conflict between Georgians and Abkhazians which has cost thousands of lives over the last decade.
Tanya Datta reports on a nationwide peasant uprising against farmers of genetically-modified soya who are mainly Brazilian and seen as colonists partly responsible for the almost total deforestation of the eastern provinces.
Evan Williams reports on an armed rebel group's efforts to seize control of the country's resources from the 135 families who hold economic and political power, as hundreds of students, activists and left wing politicians disappear without trace.
Nima Elbagir finds Venezuelans turning to the spirits of dead gangster criminals for protection against crime.
Seyi Rhodes finds schools on the front-line in a battle for hearts and minds between the Thai government and the extremists among Muslim separatists in the ethnic Malay south.
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This programme reveals how the demand for cocaine has led to thousands of deaths in Mexico.