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For centuries, nomads from the Fulani ethnic group have driven their cattle across thousands of miles of African grazing lands, through countries including Mali, Niger, Chad, Cameroon and Nigeria. But Nigeria is Africa's most populated country. And more and more land there is being used for food production.

In the far north of Nigeria, the situation has put farmers and nomads at odds with each other. David Hecht reports from the small village of Yardanko.

Jason Motlagh, who recently returned from a Pulitzer Center-funded trip to Afghanistan, talks to C-SPAN's Washington Journal about the current situation on the ground there. In this half-hour program he fields questions about the challenging terrain in Helmand province, the opium poppy industry and the US's long-term objectives in the war in Afghanistan. Watch the interview on C-SPAN's website.

A truck is a truck is a truck. Except in Pakistan, where trucks go to the beauty parlor for makeovers. Listen to this report.

Listen to this story at World Vision Report.

This story also aired on KUOW.

"We found a great journalist. We've been trying to find as many people as we can to talk about the situation in Afghanistan, and my guest now is a roving freelance multimedia journalist. He has reported from over 30 countries throughout West Africa, the Mideast, Central and South Asia for leading U.S. and international media outlets. And a series of recent multimedia projects undertaken with support from the Pulitzer Center on Crisis Reporting have explored conflicts with India, Nepal, and Sri Lanka.

Worldfocus.org's weekly radio show on Tuesday, May 12 at 6:30 p.m. EDT explores urbanization and the rise of slums, examining how such deplorable conditions might be addressed, even as the global economic crisis looms.

WorldFocus anchor Martin Savidge hosts a panel of guests:

Listen to this story at World Vision Report.

Hundreds of thousands of Pakistanis were already fleeing the Swat Valley before the latest fighting broke out.

Sher Ali Khan, 55, is one of them. He fled his home in a village in the Swat Valley nine months ago. Sher Ali Khan now lives in a rented house in Landhi, a largely Pashtun settlement on the outskirts of Karachi.

Bolivian President Evo Morales says he's committed to fighting cocaine production and trafficking in his country. Three years ago, he instituted a drug program called "Coca si, cocaine no." That means it's illegal to make cocaine -- but farmers are allowed to grow the coca plant, the basis of cocaine, for traditional uses such as chewing or making tea.

Sudan has become synonymous with war, due to the five-year conflict raging in Darfur. The UN estimates that 300,000 people have died and close to 2.5 million others have been displaced. The vast majority have been indigenous Africans.

Darfur's war is often portrayed as a racial one, pitting Arabs against Africans. But in northern parts of the country, many Sudanese are defying stereotypes. Heba Aly files this report from Dongola, a town in northern Sudan where Africans and Arabs have been living together harmoniously for decades.