"With the death of Utopia," writes John Gray in his latest, "apocalyptic religion has re-emerged, naked and unadorned, as a force in world politics." As has the author — this follow-up to Straw Dogs, al Qaeda and What it Means to be Modern and Heresies is a ferociously ambitious polemic that grabs onto the coat-tails of bestselling God-bashers Richard Dawkins and Christopher Hitchens, wrestles them to the ground, rips the shirts from their backs and burns them in the street. Religion, says Gray, like sex and violence, is a vital part of human nature. It's the optimistic belief in utopias, the "attempts to build a secular monolith", that are doomed and unnatural.