MEMPHIS, TN - (WMC-TV) – A Mid-South teen is banned from prom for wearing a dress that resembles a confederate battle flag. "It wasn't done to offend anybody," Texanna Edwards explained of her dress. "It was done just for the sole fact that I just wanted a rebel flag dress because I thought it was cool." But the principal at Gibson High in West Tennessee did not think it was cool. Edwards, a senior at the school, tried to wear the dress that she helped design to the prom Saturday night. She also wore a rebel flag necklace. "He told...