<p>Harry Chapman Pincher is regarded as one of the finest investigative reporters of the twentieth century. Over the course of a glittering six-decade career, he became notorious as a relentless investigator of spies and their secret trade, proving to be a constant thorn in the side of the establishment. So influential was he that Prime Minister Harold Macmillan once asked, 'Can nothing be done to suppress Mr Chapman Pincher?' It is for his sensa...