For a full-scale review of the book, read Big Sister is Watching You, Whittaker Chambers' devastating dismantlement of Rand's philosophy. (The actual review is about half-way down the page....)
Chambers' critique has been picked apart in depth by me and several others in previous threads, so for brevity's sake let me just say this of "Big Sis is Watching You."
The first and last words of his essay are too far apart.