His supporters say the book will show Romney is more thoughtful than Sarah Palin. BY KENNETH T. WALSH Friends of Mitt Romney say his upcoming book, No Apology: The Case for American Greatness, is a lengthy and detailed explanation of his philosophy and should be a fitting prelude to a 2012 presidential campaign if Romney decides to run. The book, which comes out March 2, seems designed to position Romney as a thoughtful conservative who has ruminated carefully about the major issues of the day, ranging from the global economy to national security. Romney supporters say it will serve as...