Two identical twin sisters shared the spotlight during graduation at their Chicago high school as co-valedictorians. Tia and Tyra Smith graduated from Lindblom Math and Science Academy in West Englewood, Illinois on Saturday, with each maintaining a 4.0 GPA and taking 12 Advanced Placement (AP) courses, according to Good Morning America (GMA). "I was glad it was both of us," Tyra Smith told GMA. "We really worked together in order to be where we were. It was...