Dispatches reveals how key politicians at the heart of the vicious fighting in Somalia - described as the world's worst humanitarian crisis - enjoy incredibly close links to Britain.

Since resigning in June 2007, Tony Blair has financially enriched himself more than any previous ex-prime minister. Reporter Peter Oborne reveals some of the sources of his new-found wealth, much of which comes from the Middle East.

Dispatches lifts the lid on the pensions crisis. The programme names some of the blue-chip companies that have abandoned final salary pension schemes. It shows how widespread the problem of underperforming pensions is, and how difficult it is to get full compensation if things go wrong

Dispatches investigates a fundamentalist Islamic group headquartered in Britain, and its claims to have placed its \'brothers\' in positions of political power here.

In the wake of the resignation of the Downing Street\'s head of communications Andy Coulson, Dispatches charts the unfolding events in the phone hacking scandal.

Five of the world's top scientists present the revolutionary scientific inventions they believe could stop global warming and prevent worldwide disaster. Ideas include putting a giant glass sunshade in space to deflect a small portion of the sun's rays back into space and the firing ofrockets loaded with tons of sulphur into the stratosphere creating a vast, but very thin sunscreen of sulphur around the earth

The Prussian king Frederick the Great was one of the greatest warriors and leaders in modern European history, achieving greatness through the Seven Years War and lauded as a philosopher and cultured 'Prince of the Enlightenment'. Yet the reputation of both Frederick and his Prussia was to be tarnished by association with Hitler's Nazi regime. Historian Christopher Clark re-examines the life and achievements of one of Germany's most colourful and controversial leaders.

Gil Scott-Heron was one of the most influential musicians and poets of the last 50 years. In Don Letts\'s documentary, Gil tells his own story for the first time - from being one of the first black children to integrate an all-white Southern state school to becoming the Godfather of Rap.

The question of how to run a good society has puzzled intellectuals for centuries. Should we allow governments to secure a better country, or place our trust in the individual?

Culture used to be so easy to define - it was ballet, opera, Shakespeare, Beethoven... But in the 20th century, these easy assumptions were torn apart by intellectuals who turned culture into a political weapon.

Recent research has analysed the link between the harmful effects of drugs relative to their current classification by law with some startling conclusions. Perhaps most startling of all is that alcohol, solvents and tobacco (all unclassified drugs) are rated more dangerous than ecstasy, 4-MTA and LSD (all class A drugs). If the current ABC system is retained, alcohol would be rated a class A drug and tobacco class B.

The story of how the Arab world erupted in revolution, as a new generation used the internet and social media to try to overthrow their hated leaders.

In the last of this two part series, Mishal Husain meets those who spread the revolt to Libya and Bahrain, and those who are still fighting the Syrian regime.

One of two contrasting views on immigration under the slot title 'Unwelcome Britain?'. The other is 'Let 'em all in' Looks at the impact of immigration on social and health services, the economy and British cultural identity. Rod Liddle, takes a critical look at current immigration policy and raises concerns about problems that need addressing in order to prevent growing resentment and anger from many people in the country.

For millions, the election of Barack Obama marked a new era of hope. This four-part series tells the story of how he tried to reshape America as told by his inner circle - and the president himself.

With exclusive interviews from president Obama and his White House team, episode two tells the story of Obama's greatest legacy: healthcare.

Episode three explores how Barack Obama set out to end George Bush's wars in the Middle East and reset relations with the rest of the world. In Cairo he speaks to the Arab world, calling democracy a human right.

The last instalment of this definitive account of Obama's presidency tells how Obama got re-elected for a second term and tried to tackle America's most intractable social problems - guns, immigration and race.

In the second episode of this major four-part series, presenter Michael Cockerell explores the upstairs-downstairs world of the House of Commons. We see what goes on backstage at the state opening, when the Queen comes to open the parliamentary year, including a surreal traditional search for gunpowder.

In the third episode of this major four-part series, presenter Michael Cockerell sees how the traditional three-party system appears to be falling apart at the seams. Back-bench MPs are becoming increasingly rebellious as they confront the dark arts of the whips - the shadowy figures who seek to impose party discipline.

In the final part of this major four-part series, battles break out over the future of the House. Speaker John Bercow runs into trouble with his own plans for reforming it. Wealthy Tory backbencher Zac Goldsmith tries to give voters the power to sack their MPs - and the establishment tries to stop him.

Militant Islam enjoyed its first modern triumph with the arrival in power of Ayatollah Khomeini in Iran in 1979. In this series of three programmes, key figures tell the inside story.

In part three of this landmark series from Norma Percy and the team that made the multi-award winning documentaries The Death of Yugoslavia and Elusive Peace: Israel and the Arabs, contributors, including Iran's President Khatami, tell the inside story of the West's continuing nuclear confrontation with Iran. The film also shows a rare moment when they worked together.

Following a season in which football has been rocked by allegations of racism, former Premier league defender Clarke Carlisle explores how far his profession has really progressed since the dark days of banana throwing on the terraces in this documentary.

Following on from the BAFTA-shortlisted Panorama programme Taking on The Taliban, Ben Anderson catches up with 24-year-old Lance Corporal Jack Mizon of the Queen's Company, Grenadier Guards.

On both sides of the Atlantic, John F Kennedy continues to be invoked by today\'s politicians in the hope that some of his magic might rub off on them. But, 50 years since Kennedy\'s election, Andrew Marr asks whether JFK\'s legacy has tarnished politics ever since.

From the Royal Institution in London, Harvard professor Michael Sandel hosts a discussion to explore fairness in public policy and the Big Society.

Louis Theroux joins the Philadelphia Police Department patrolling the most dangerous part of one of the most violent cities in America.

One of two contrasting views on immigration under the slot title 'Unwelcome Britain?'. The other is 'Immigration is a Time Bomb'

Louis Theroux spends time with a small and very committed subculture of ultra-nationalist Jewish settlers.