The Texas Board of Education approved new health textbooks after the publishers gave in to last-minute pressure from some board members to define marriage as a "lifelong union" between a man and woman. The decision Friday, which involves two of the biggest textbook publishers, is an example of Texas exerting its clout as the nation's second-largest buyer of textbooks. Officials say the decision could affect hundreds of thousands of books in Texas alone. Board member Terri Leo, a Republican, said she was pleased with the publishers' changes. She led the effort to get the publishers to change the texts, objecting...