A timely reality check/review
Richard Clarke's Cyber War may be the most important book about national-security policy in the last several years. It's about a threat that almost everyone has heard of, that almost no one understands, and that the U.S. government hasn't begun to address very seriously.
The book was also recently reviewed in the NYT; excerpt:
In these pages Mr. Clarke uses his insider’s knowledge of national security policy to create a harrowing — and persuasive — picture of the cyberthreat the United States faces today. Mr. Clarke is hardly a lone wolf on the subject: Mike McConnell, the former director of national intelligence, told a Senate committee in February that “if we were in a cyberwar today, the United States would lose.”