Early in his book, Rod Barton describes his reaction to two events that showed what kind of intelligence officer he would become. In the late 1970s he was asked by the Joint Intelligence Organisation to deter-mine the winners and losers in a nuclear exchange between the superpowers. But how, he asked, could this be done without taking into account environmental, political, medical and psychological factors? The other occasion was when Barton contradicted American military intelligence assertions that ‘yellow rain’ falling on Hmong tribesmen in Laos in the late 1970s was a Soviet-supplied chemical warfare agent. His own investigations showed it was bee droppings. Prime Minister Malcolm Fraser backed his findings despite pressure from US Secretary of State Alexander Haig to endorse the American version. Barton’s view prevailed.