 or from all agents. This is The World. I'm Marco Werman. Sudan is spiraling into a famine on a scale not seen in decades. That is the latest assessment from the experts at the United Nations who monitor global hunger. Over the weekend, Sudanese rebels said they captured the key state capital of Singa in Sudan's southeast, another grim milestone in fighting that has raged since April of last year. That's when the Sudanese armed forces...