When actress and producer Salma Hayek arrived in Sierra Leone in September, she was not whisked off to a movie set.
She was there not as a celebrity, but as a humanitarian, to see firsthand a leading cause of death in the developing world: tetanus.
"Nightline" co-anchor Cynthia McFadden went along to document the journey.
To most people in the United States, tetanus brings to mind rusty nails and a quick trip to the doctor's office for a shot. But in developing countries like Sierra...Full Story