Rebels in the Pipeline

Vanguard's Mariana van Zeller travels to one of the most unstable regions in the world --– Nigeria's oil-rich Niger Delta. She investigates what's behind the growing number of kidnappings and attacks in Africa's largest oil producer and the US's fifth largest energy supplier.

For more on the situation in the Niger Delta see this dispatch from producer Darren Foster:
Nigeria: The Corruption of Oil

Lagos la Vida Loca

By next year, more than half the world's population will for the first time in history be living in cities. Current's Mariana van Zeller tours Lagos, Nigeria, the world's fastest-growing "Megacity".