On his second day in office, President Obama pledged to close the Guantanamo Detention Centre within a year. Michael Portillo finds out why he's not been able to keep his promise.

Documentary following the lives of ordinary Americans who voted for Barack Obama and had high hopes for his presidency. How have their lives been changed in Obama's first year?

Documentary telling the powerful story of how the survivors of the Boxing Day tsunami of 2004 have tried to rebuild their lives.

Violence is running out of control in Mexico as rival drug cartels battle over the smuggling routes. Katya Adler journeys deep into the heart of a shocking conflict.

Lucy Ash investigates bride stealing in Chechnya, following two families as they struggle to negotiate a compromise over the fate of a young woman abducted in the street.

Filmed over the six months after the Haiti earthquake, This World follows four of the few who were rescued from a death beneath the rubble.

A shocking look at heroism, grief, combat, drugs, alcohol, brutal murder and the consequences of multiple tours and post-traumatic stress for a generation of American soldiers.

The story of the kidnapping of Colombian presidential candidate Ingrid Betancourt and her assistant Clara Rojas. Both of them spent six years in the jungle before their rescue.

As the US prepares to vote in crucial mid-term elections, political journalist Andrew Neil investigates the right-wing Tea Party, the fastest-growing political movement in the US.

Documentary. Jane Corbin travels with Doctor Shershah Syed through the flood ravaged Sindh province in Pakistan as he performs life-saving operations.

Adventurer and journalist Simon Reeve heads to Kenya and Uganda to uncover the stories behind Britain's favourite drink, meeting the people who pick, pack and transport tea.

Simon Reeve heads to Vietnam to uncover the stories behind the morning pick-me-up. He travels to the central highlands, where he meets the people who grow, pick and pack coffee.

Robert Peston travels to China to investigate how the economic giant could actually be in trouble. It is a story of spending and investment on a scale never seen before.

As Brazil prepares to host the World Cup, Copacabana Palace follows the lives of the staff and guests at one of Latin America's most iconic hotels.

Documentary in which Ade Adepitan explores the afterlife of some of the clothes we donate to charity shops. He follows the trail to Ghana, the biggest importer of our castoffs.

Documentary about survivors of the 2013 collapse of the Rana Plaza, an eight-storey commerical building in Bangladesh, and the safety of the Bangladeshi garment industry.

Journalist Martin Sixsmith hears the moving stories of the parents and children involved in a transatlantic adoption run by the Irish Catholic Church during the 1950s and 60s.

Following attempts by the new warden of Maine State Prison to reform the practice of solitary confinement, which has seen inmates locked up alone for days, years or even decades.

Revisiting the terrorist attack on Kenya's Westgate Shopping Mall in September 2013, when four gunmen killed 71 people. Featuring CCTV footage and interviews with the survivors.

Documentary series. This World reveals evidence that challenges the accepted story of one of the most horrifying events of the late 20th century, the Rwandan genocide.

Investigative documentary following three families involved in the Sandy Hook shooting, as they try to make sense of the tragedy and find a way to move on and rebuild their lives.

International investigative documentary series. A look at the continuing success of the Sinaloa Cartel in the wake of its leader's arrest in February 2014.

International investigative documentary series. In the wake of the country's economic stagnation, Robert Peston examines the rise of Marine Le Pen and the Front National in France.

Investigative documentary. Britain's Jihadi Brides reveals how the sophisticated recruiting tactics of IS have shattered so many lives.

Jane Corbin travels across the Middle East to some of the holiest places in Christendom and finds that hundreds of thousands of Christians are fleeing conflict and persecution.

Documentary. The inside story of how a small band of fanatical jihadists became the world's richest terror army. Peter Taylor looks at the wealth of the so-called Islamic State.

The inside story of how and why the worst Ebola outbreak in history wasn't stopped before it was too late. This film exposes tragic missteps in the response to the epidemic.

Investigative documentary. Jane Corbin examines the evidence for the supposed conspiracy about Bin Laden's death.

Investigative documentary. Hans Rosling examines the world goal of eradicating extreme poverty.