Sorry - Who Are You?

Prosopagnosia is a medical condition that stops people from recognizing faces. But how common is it and why does it happen? A It was Jacob Hodes' first day at college. He can still recall spending an enjoyable afternoon being shown around campus by a second-year student named Daniel Byrne, who happened to be from his hometown. Jacob then spent the rest of the year ignoring him. "I never saw him again," he says. "Well, I'm sure I walked past him plenty of times, but I just didn't see hi...