ONTARIO - The family of a boy who committed suicide after an immigration rally earlier this year is asking a federal judge to bar the school district from disciplining students who miss class to attend such protests. The family has said Anthony Soltero, 14, killed himself because he was threatened with harsh discipline for skipping class to attend a rally. He died April 1. "Anthony was learning about the importance of civic duties and rights in his eighth-grade class," said Louise Corales, the boy's mother. "We have to let the schools know that they can't punish our children for exercising...