In the United States the old but bitter debate between evolution and creationism is heating up again. Three of the Republican presidential candidates do not believe in evolution and a high-tech creation museum recently opened in Kentucky. Much of the debate has been fuelled by a book claiming the Grand Canyon, one of America's most well-known landmarks, was carved by Noah's flood rather than erosion. Every national park has at least one gift shop - usually more - selling t-shirts, snow domes, mugs, postcards and books. At the Grand Canyon you will find books on the canyon's history, the canyon's...
