Newt Gingrich and William R. Forstchen. New York: Thomas Dunne Books, 2008. 369 pp. (Hardback). Utilizing what is often called “active history,” this book examines how a change in one decision could have altered American history relative to the attack on Pearl Harbor Dec. 7, 1941. Specifically, according to these authors, the outcome of history may have drastically changed if…