This image released by the National Transportation Safety Board, Sunday, July 7, 2013, shows an NTSB agent photographing a part of the Boeing 777 Asiana Airlines Flight 214 aircraft. Th

 

              This image released by the National Transportation Safety Board, Sunday, July 7, 2013, shows an NTSB agent photographing a part of the Boeing 777 Asiana Airlines Flight 214 aircraft. Th
This image released by the National Transportation Safety Board, Sunday, July 7, 2013, shows an NTSB agent photographing a part of the Boeing 777 Asiana Airlines Flight 214 aircraft. The Asiana flight crashed upon landing Saturday, July 6, at San Francisco International Airport, and two of the 307 passengers aboard were killed. (AP Photo/NTSB)