This book by Ayn Rand's heir, Leonard Peikoff, is an arresting depiction of the "ominous parallels" between America today and the chaos of pre-Hitler Germany.  I highly recommend it to my fellow liberty-lovers.  This review via LewRockwell.com sums it up rather well.

 Here's what Ayn Rand had to say about it:

If you do not wish to be a victim of today's philosophical bankruptcy, I recommend The Ominous Parallels as protection and ammunition. It will protect you from supporting, unwittingly, the ideas that are destroying you and the world.