World at One - "How do you photograph something that's missing?" - ÃÛÑ¿´«Ã½ Sounds

World at One - "How do you photograph something that's missing?" - ÃÛÑ¿´«Ã½ Sounds
"How do you photograph something that's missing?"
Martha Kearney speaks to photojournalist Glenna Gordon about her missing girls photos