Plenty of books have beaten up on the Bush administration’s military and diplomatic strategies. But Fred Kaplan’s Daydream Believers: How a Few Grand Ideas Wrecked American Power may be the most broad-based assault yet. In it, Kaplan hammers on everything from the White House’s faith in military technological superiority to its holier-than-thou approach to negotiating (or not). Kaplan, who writes Slate’s “War Stories” column, also explores the roots of many of these beliefs. And that’s where we start this Q&A — this first of many, I hope, with leading authors on national security.