A doctor helping Sudan's war wounded and an ex-diplomat tell CBS News about the costs of halting USAID

Omdurman, Sudan — Hunger is everywhere in war-torn Sudan. While the poorest of the poor, including hundreds of thousands of people trapped in war zones, are facing famine, soup kitchens have even sprung up on street corners in the center of cities like Omdurman, which is home to two million people.

Well-heeled professionals have been lining up for food handouts. There has been a complete erosion of the middle class.

CBS News met Mohammed Hamad in one of the lines. He's an electrical engineer and once had a lucrative business. But like so many others in Sudan, he's found that the raging civil war has meant there's no work, and no income.