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An aid worker using an iPad films the rotting carcass of a cow in Wajir near the Kenya-Somalia border, July 23, 2011. Since drought gripped the Horn of Africa, and especially since famine was declared in parts of Somalia, the international aid industry has swept in and out of refugee camps and remote hamlets in branded planes and snaking lines of white 4x4s. This humanitarian, diplomatic and media circus is necessary every time people go hungry in Africa, analysts say, because governments - both African and foreign - rarely respond early enough to looming catastrophes. Combine that with an often simplistic explanation of the causes of famine, and a growing band of aid critics say parts of Africa are doomed to a never-ending cycle of ignored early warnings, media appeals and emergency U.N. feeding - rather than a transition to lasting self-sufficiency.

REUTERS/Barry Malone