National Transportation Safety Board Chairwoman Deborah Hersman, center, makes a statement alongside San Francisco International Airport Director John Martin, left, and San Francisco Ma

 

              National Transportation Safety Board Chairwoman Deborah Hersman, center, makes a statement alongside San Francisco International Airport Director John Martin, left, and San Francisco Ma
National Transportation Safety Board Chairwoman Deborah Hersman, center, makes a statement alongside San Francisco International Airport Director John Martin, left, and San Francisco Mayor Ed Lee during a press briefing on the investigation of the crash of Asiana Flight 214 at the San Francisco International Airport in San Francisco, Sunday, July 7, 2013. (AP Photo/Marcio Jose Sanchez)