"shooting down of an EC-121" . . . "EC-121 shootdown incident" . "downing of a VQ-1 EC-121 aircraft by the North Koreans" . "shot down an EC-121 reconnaissance plane" . . . "none" . "shoot down of a Navy EC-121 reconnaissance aircraft by the North Koreans" . "shooting down of a Navy EC-121 aircraft" . . . "shot down an American aircraft the following year" . "1969 EC-121 shootdown incident" . "shot down by North Koreans" . . . "shootdown of a Navy EC-121 by the North Koreans" . "downing of a Navy EC-121 aircraft by the North Koreans" . "2MiG-21s" . . . "shot down an American EC-121 surveillance aircraft" . . "was shot down" . . "shoot down of a Navy EC-121 aircraft" . . . . . "1969-04-15" . "1Lockheed EC-121 Warning Star" . "North Korean fighters downed an EC-121 reconnaissance" . "shoot down of a Navy EC-121 aircraft by the North Koreans" . "downing of a Navy EC-121 by the North Koreans" . "15 April 1969 shoot-down" . "shot down" . "One aircraft shot down" . "shot down in international airspace by North Korean fighters" . . "North Koreans shot down an American reconnaissance plane" . "shot down a US EC-121 spy plane" . "shoots down" . "Navy EC-121 shot down by the North Koreans" . . . . "1969 EC-121 shootdown incident" . . "shot down a Navy reconnaissance aircraft" . . . "shot down by North Korean aircraft" .