A private boarding school connected with the Hershey chocolate company says it was trying to protect other students when it denied admission to a Philadelphia-area teenager because he is HIV-positive. The AIDS Law Project of Pennsylvania filed a lawsuit on behalf of the unidentified boy in U.S. District Court in Philadelphia on Wednesday, claiming the Milton Hershey School for disadvantaged students violated the Americans with Disabilities Act. School officials acknowledged that the 13-year-old boy was denied admission because of his medical condition. They said they believed it was necessary to protect the health and safety of the 1,850 others enrolled...