What is the author's tone in Slouching Toward Bethlehem by Joan Didion?

The tone of this book tends to be subjective. Many of the essays are highly personal which makes it impossible for the writer to approach it with an objective tone. Even when Didion attempts to be objective, as in "Slouching Towards Bethlehem," the essay about the children living in the Haight-Ashbury district of San Francisco, her personal thoughts and opinions somehow manage to come out.