Thanks to collapsing birthrates, much of Europe is on a path of willed self-extinction. The untold story is that birthrates in Muslim nations are declining faster than anywhere elseâ??at a rate never before documented. Europe, even in its decline, may have the resources to support an aging population, if at a terrible economic and cultural cost. But in the impoverished Islamic world, an aging population means a civilization on the brink of total collapseâ?? something Islamic terrorists know and fear. Muslim decline poses new threats to America, challenges we cannot even understand, much less face effectively, without a wholly new kind of political analysis that explains how desperate peoples and nations behave. In How Civilizations Die, David P. Goldman, author of the celebrated Spengler column read by intelligence organizations world wide, ??reveals how, almost unnoticed, massive shifts in global power are remaking our future.