1/1 David Gutnick reports on Mauritania's problem with slavery.
Mike talks to an oil boss, hears about diamond mining, and pays homage to graphite.
The Large Binocular Telescope, the world's largest telescope is nearing completion.
2/2 Michael Robinson reports on the increasingly desperate efforts to stave off a global sl...
An entrepreneur's thoughts on a way of weaning motorists off their reliance on oil.
2/6 Vivek Kumar thrives on infidelity. He runs India's number one detective agency.
4/4 Sorious Samura heads to Sierra Leone as a starting point for a trip to 4 neighbouring c...
Mike Williams meets the UN environment chief, plus reggae, remittances and Prince Charles
1/2 Michael Robinson reports on the increasingly desperate efforts to stave off a global sl...
A decade after the civil war in Algeria Assignment asks if there is hope for the future.