If they can escape slaughter, endure rape and survive outbreaks of infectious diseases, the thousands of young people uprooted by ethnic conflict in Sudan’s Darfur province still face food shortages that threaten to stunt forever the physical and intellectual growth of their formative years. The sheer immediacy of the moment in Darfur - the scene of one of the great humanitarian crises of the post-Cold War era - overshadows what could be the lifelong consequences of malnutrition on a generation of displaced youngsters.