Parents of British teen killed in car crash involving U.S. diplomat's wife demand answers

The whereabouts of the wife of a U.S. diplomat, suspected of killing a British teenager in a car crash, remains a mystery. Nineteen-year-old Harry Dunn was killed while riding his motorbike in August. Authorities say Anne Sacoolas was driving on the wrong side of the road when she hit Dunn. She then left the U.K. under diplomatic immunity. Imtiaz Tyab reports.