To judge from what we are reading and hearing almost every day at the moment, it would seem Britain is in the throes of a war of religion. A war, that is, between religion and atheism. Professor Richard Dawkins, the Savonarola of atheism, regularly hurls his thunderbolts at believers. Christianity, says the church, is under siege. Christians are being prevented from wearing the crucifix at work, being barred from adoption panels. Even Delia Smith has now brought her rolling pin to the fight to defend the faith.