At the age of 84, America's grand man of letters Norman Mailer has lost nothing of his appetite for controversy. His latest novel, The Castle In The Forest, tackles the childhood of Adolf Hitler. The book tells how two-year-old Adolf watched his father whip a dog with 'a look of remarkable intensity for one so small'. And how, as a six-year-old, he went into the woods by himself 'to work on the power of his voice. He would roar at the trees until his throat was sore'. Perhaps the most chilling passage is when Adolf causes the death of his...