Millions have died as a result of disastrous US-led military adventurism. But there have been no consequences for those who championed it for so longWhat an admission. “The threat of terrorism” from the Middle East, an influential US columnist wrote a fortnight ago, “was a consequence of American involvement, not the reason for it”. If the US had “not been deeply and consistently involved in the Muslim world since the 1940s,” he added, “Islamic militants would have little interest in attacking” it. He went further still: “Contrary to much mythology, they have hated us not so much because of ‘who we are’ but because of where we are.”After a quarter of a century of disastrous US wars in the Middle East, that may sound like common sense. But this is Robert Kagan, one of the godfathers of neoconservatism, the creed that zealously championed military adventurism at the height of the era of US exceptionalism. In the 1990s, he repeatedly agitated for war with Iraq, a demand that became a rall...