CASTRO VALLEY -- Pari Cariaga can now say that she knows people in high places -- really high places. Last summer, the Castro Valley fourth-grader expressed to her parents, Hilarie and Rudy Cariaga, that she had been feeling lonely because she was an only child. "She came in one day and just started to cry in my lap," Hilarie said. "She had told me that it was due to the fact that she had nobody to play with." After seeing this, Rudy suggested to his young daughter that she write a letter to none-other-than first lady Laura Bush, an only...