FORT WORTH — Students who had been planning to walk across the stage at graduation ceremonies this weekend were instead walking a picket line Thursday morning. The Trimble Tech High School seniors marched in front of Fort Worth Independent School District headquarters to protest Wednesday's decision by trustees to bar students who failed the TAKS test from commencement exercises. About a dozen young people, carrying signs and chanting, began picketing at 8:30 a.m. Thursday. They represent the 613 Fort Worth seniors who did not pass the Texas Assessment of Knowledge and Skills exam. Crystal Martinez complained that while she finished...