post-9/11 world. Steyn says that the "difference between the old Indian territory and the new is this: no one had to worry about the Sioux riding down Fifth Avenue. Today, with a few hundred bucks on his ATM card, the fellow from the badlands can be in the heart of the metropolis within hours. Here’s another difference: in the old days, the white man settled the Indian territory. Now the followers of the badland’s radical imams settle the metropolis. And another difference: technology. In the old days, the Injuns had bows and arrows and the cavalry had rifles. In today’s Indian territory, countries that can’t feed their own people have nuclear weapons." Steyn dismisses the danger of climate change, The Population Bomb, The Limits to Growth, and nuclear winter. Critical reception The New Republic article said that by 2007, Steyn's America Alone, had already convinced the readers of the National Review—which he called "the bible of American conservatism"—of an imminent and inevitable Muslim invasion. In his 2007 City Journal review, Christopher Hitchens praised the book as "an admirably tough-minded book." Hitchens said that, "Mark Steyn's book is essentially a challenge to the bien-pensants among us: an insistence that we recognize an extraordinary threat and thus the possible need for extraordinary responses. He need not pose as if he were the only one with the courage to think in this way." The British novelist Martin Amis also reviewed the book in The Times and called Steyn as the "great sayer of the unsayable". Amis added, "I continue to hope that his admonitions will gain some momentum, despite the efforts of his prose style to impede it." Then President of the United States, George W. Bush, circulated copies to his White House staff after reading Steyn's book. According to Steyn, it was also read by Democrat vice-presidential nominee Joe Lieberman and Spanish prime minister José Maria Aznar. In a 2007 Spectator review by British politician and prominent Brexit campaigner, Michael Gove, he wrote that the fact that "many of Steyn's conclusions will be unpalatable to the European consensus only underlines how much a failure to face harsh truths has characterised the European response to the scale of the terrorist threat we face." Daniel Johnson said that Steyn is as "damning as he is persuasive: from demographic suicide to the abdication of self-defence, he conducts a forensic analysis of the hollowing out of