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The book is easy reading -- it flows quickly and keeps returning to a common set of themes. These are set against many contexts so you're sure to find something familiar. You won't find any math or greek notation in here, to the disappointment of "Applied Cryptography" die-hards but the relief of everyone else.
The underlying message, seeing beyond the Fear, Uncertainty, and Doubt (FUD) propagated by mass media and the government, is a key one to understanding why it's OK to question this hyper-security-conscious world we find ourselves in. Airline security is an arena familiar to most business travelers, and we as passengers are expected not only to accept increasingly invasive measures, but welcome them without hesitation. Bruce teaches us how to evaluate the efficacy of these schemes both individually and in the aggregate. The results will surprise all but the most cynical among you.
That said, this is not the textbook of a conspiracy theorist. Bruce willingly admits that improving security correctly is a worthwhile pursuit, and even teaches us how to do it. You won't find the rantings of an ill-informed libertarian crackpot.
If your interests lead you to ask questions and be curious about the changes to your world in recent years, you will find this an entertaining and informative volume. Democrat or Republican, luddite or technology businessperson, it's worth a look at your earliest opportunity.
However, its not overtly political, and gives dozens (perhaps a 100) practical worked examples of good & bad, effective & ineffective, responses to security issues, whether it be physical, electronic etc.
There is a 5-step process which I found useful to apply to everyday situations; and (in highly abbreviated form) these are : what are you trying to protect; what are the risks; risk mitigation; risks caused by the solution; trade-offs
The core message is : "as both individuals and a society, we can make choices about our security", and this book helps you understand how to make those informed decisions.