The American journalist, Edward Bernays, is often described as the man who invented modern propaganda. The nephew of Sigmund Freud, the pioneer of psycho-analysis, it was Bernays who coined the term "public relations" as a euphemism for spin and its deceptions.

In 1929, he persuaded feminists to promote cigarettes for women by smoking in the New York Easter Parade – behaviour then considered outlandish. One feminist, Ruth Booth, declared, "Women! Light another torch of freedom! Fight another sex taboo!" Bernays' influence extended far beyond advertising. His greatest success was his role in convincing the American public to join the slaughter of the First World War.

The secret, he said, was "engineering the consent" of people in order to "control and regiment [them] according to our will without their knowing about it".

He described this as "the true ruling power in our society" and called it an "invisible government".