COLUMBIA, S.C. (AP) -- "I always thought I had a fairly normal childhood, until I found out my parents weren't who I thought they were." So begins the autobiography of Essie Mae Washington Williams, the daughter of longtime U.S. Sen. Strom Thurmond and a 16-year-old black maid who worked at his family's home. Williams, now 79, came forward a year ago, after Thurmond's death, with the secret she had held for more than 70 years. Her upcoming book, "Dear Senator: A Memoir by the Daughter of Strom Thurmond," deals frankly with her relationship with the one-time segregationist who privately acknowledged...