<p>On 30 April 1943, the drowned corpse of Major William Martin washed up on the coast of Spain. In what appeared to be a stroke of grave misfortune for the British, he was found to be carrying top-secret plans for the invasion of Italy. Truth, however, is often stranger than fiction: the plans, as well as the identity of the Major himself, were fake - part of a secret British intelligence ruse called 'Operation Mincemeat', which misled...