The Most Dangerous Man in Australia?

Who was "the most dangerous man in Australia" in the years before World War II?
Was it the geologist who obtained nickel and molybdenite to prolong the life of Krupp guns and help "our dear Führer" to win the next war?
Or perhaps the journalist who took Japanese money in return for persuading politicians that the peace-loving Japanese were no threat to Australia?
Or the Vichy French Consul-General who urged the Japanese to seize New Caledonia, while he threatened the lives of Free French supporters in Australia?
These are some of the intriguing characters to be found in this book. Judge for yourself who deserves the distinction!