There are a number of statements in this book about certain drugs being safe to use under certain circumstances. While this is true for some people under certain circumstances, the authors left out a major element in defining "safe use". They left out the human element.
Some people and certain drugs should not be mixed. In the majority of cases there is no way to tell ahead of time who these people are and which drugs they should avoid. Once they start, for many of these people there is no going back. It becomes a lifelong battle of addiction and chemical dependency. This is particularly true of cocaine, heroin, other opiates, alcohol, and certain other depressants.
The author's comments on legalization and their anti-government sentiment got too much in the way. The politics should have been left out of it, it wiped out their credibility for me.
On the one hand the government is putting out inaccurate info to justify their position, but on the other hand so is this book. 180 degrees from sick is still sick.
It's unfortunate the author's "straight talk" wasn't. This book will do harm to people looking for accurate guidance and information on safe drug use.