NEWARK, Del. -- In Delaware, Newark High School principal Emmanuel Caulk says he didn't know in advance that an assembly Tuesday that featured two pro-football players would include a Christian message. In a letter that was sent home to parents yesterday, Caulk says the literature he saw before the assembly didn't say that the presentation was non-secular. And Caulk is apologizing to students and parents. Philadelphia Eagles players Tra Thomas and Thomas Tapeh spoke for about 45 minutes. Tra Thomas is the founder of Athletes United for Christ. Caulk says the school did not know about his affiliation. The group's...