Dozens lost in China's deadliest aviation disaster in years

Search teams worked into the night in southern China after a domestic flight crashed with 132 people on board and no signs of survivors. The Boeing 737-800 was flying from Kunming to Guangzhou when it dove to the ground. It was China's deadliest aviation disaster in nearly a decade. Aviation correspondent Miles O’Brien, who is also a pilot, joins William Brangham to discuss.