And beating the odds. These twins conjoined at birth, separated at 10 months. Now speaking out for the first time on their 18th birthday about their medical miracle kept secret for so long. Now, its time for america to meet these covaledictorians. Only on gma. We do say good morning, america. And, yes, we did say covaledictorians. They are truly remarkable young women, and we cannot wait to share this shore with you. That is coming up. Also, Hillary Clinton is standing by. Robin is going to talk to her. After the breaking news, a deadly incident in afghanistan. Five americans killed. It looks like friendly fire. Martha raddatz has the details. Reporter good morning, george. These were American Special operations forces. They were out on a mission with Afghan Forces on a security patrol. They were ambushed by the taliban, coming under heavy fire, so they called in air support. That means they want warplanes to come help them out. It was an american b1 bomber that dropped the bomb. In ad