FILE - In this Nov. 2, 2013 file photo, airport police officers patrol the Tom Bradley International Terminal at the Los Angeles International Airport. Two
FILE - In this Nov. 2, 2013 file photo, airport police officers patrol the Tom Bradley International Terminal at the Los Angeles International Airport. Two armed police officers, not seen in this photo, assigned to guard a Los Angeles airport terminal where a gunman killed a screener in Nov. 2013, left for breaks without informing dispatchers as required minutes before the gunfire erupted. (AP Photo/Ringo H.W. Chiu, File) (AP Photo/Ringo H.W. Chiu, File)