Cyndy Stewart said she was shocked when her son showed her a symbol that "sanctions intolerance" in his SAIL High School yearbook. The page included a Confederate flag and the phrases: "Long Live General Lee. Redneck and Proud!! The South Will Rise!!" Stewart said it's "defeating and condescending" to students of color and sends a bad message to all students regardless of race.She and another parent asked the School Board on Tuesday to create stricter policies on offensive materials in student publications."It's 50 years after Brown v. Board of Education," said Stewart, who teaches school in Georgia. "It doesn't make...