Worried about potential fights breaking out if students protested, Central High School earlier this week decided not to have students sing the national anthem Friday afternoon at a school pep rally, but after a parental outcry the school will play the song after all. “We’ve learned a very valuable lesson,” said Sandy Davis, assistant superintendent of Central public schools. Parents in the suburban, politically conservative Baton Rouge school district took to social media Wednesday and Thursday to complain about the school’s decision not to sing “The Star Spangled Banner” at the pep rally, prompting the reversal Thursday morning. The initial...