The military is announcing a contract aimed at redesigning army and marine corps helmets to better protect troops from head trauma. More than 300,000 service members have returned home with a traumatic brain injury since September 11. In some cases, those injuries have led to the degenerative brain disease, CTE. Now the military is taking lessons from an unlikely place, the football field. Carter Evans shows us the research at the Seattle- based football helmet company, VICIS.