When it comes to the gun control debate, there are two kinds of data: data that's accurate, and data that left-wing billionaires, liberal politicians, and media want you to believe is accurate. In The War on Guns: Arming Yourself Against Gun Control Lies (Regnery Publishing; $27.99; 978-1621575801), nationally-renowned economist John R. Lott, Jr. turns a skeptical eye to well-funded anti-gun studies and stories that perpetuate false statistics...