Valerie Biden Owens isn't a candidate in this year's presidential election, but those who came to hear her speak in Altoona Thursday didn't mind. Owens stopped by Democratic presidential candidate Barack Obama's local office to campaign for Obama and his running mate, Joe Biden, her older brother. "I'm OK with either," Tyler Mentzer of Duncansville said, of seeing the candidates or surrogates. "I'd love to see Obama and Biden." Mentzer said he already knew the ticket's issues; he liked Owens' personality and lightheartedness. "I think we need more of that," he said. It was standing room only as more than...