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Obama: Professor President

How smart is Barack Obama? A look at the US president's intellectual credentials

• 22 mins

Indonesian Journeys - Jakarta

A visit to Jakarta, Indonesia as it prepares for elections after 32 years of dictatorship

• 22 mins

Indonesian Journeys - Acheh

Acheh is the second of four stops on a pre-election journey through Indonesia

• 22 mins

Indonesian Journeys - West Timor

West Timor is the third of four stops on a pre-election journey through Indonesia

• 22 mins

Indonesian Journeys - Bali

Bali is the final stop on a pre-election journey through Indonesia

• 22 mins

Chinua Achebe: A Hero Returns

Travelling with Chinua Achebe, author of 'Things Fall Apart', as he returns to Nigeria

• 22 mins

The Secret Scientists - Part One

The Islamic scientists who flourished during Western Europe's 'Dark Ages'

• 22 mins

The Secret Scientists - Part Two

2/3 programmes uncovering the scholars of the 'Golden Age' of Islam

• 22 mins

The Secret Scientists - Part Three

3/3 programmes uncovering the scholars of the 'Golden Age' of Islam

• 22 mins

On the Brink - Part One

How will Europe and US financial bail-out packages hit newly emerging nations?

• 21 mins

On the Brink - Part Two

A look at the effects of the global recession in Japan

• 22 mins

The Lost Voices of Tiananmen Square - One

A look back at one of the 'biggest popular revolts in the history of communism'

• 22 mins

The Lost Voices of Tiananman Square - Two

2/2 programmes looking back at the pro-democracy protests in China's Tiananamen Square

• 22 mins

Farm Swap - Part One

What can farmers from different countries learn from each other?

• 22 mins

Farm Swap - Part Two

A look at the problems and benefits for farmers working overseas

• 22 mins

The Greening of the Deserts - Part One

Is the Sahara greening or drying up? A look at the evidence

• 22 mins

The Greening of the Deserts - Part Two

The scientists collecting evidence of climate change in the Namib desert

• 22 mins

The Greening of the Deserts - Part Three

How far can human efforts contribute to the greening of the Sahara?

• 22 mins