以下是從國務院FRUS網站上找到的項目，是張立義被擊落後，詹森的國家安全顧問Bundy寫給他的備忘錄，可惜有兩段文字因為仍不能解密而被刪除。
原文照登:
75. Memorandum From the President's Special Assistant for National Security Affairs (Bundy) to President Johnson/1/
Washington, January 10, 1965.
/1/Source: Johnson Library, National Security File, Memos to the President, McGeorge Bundy, Vol. 8. Top Secret. A handwritten "L" on the source text in Johnson's handwriting indicates that he saw the memorandum.
You may have heard of the Red Chinese announcement that a Chinese Nationalist U-2 was shot down over the Chinese Mainland early today. Our intercepts and other data confirm this report, and the Chiang government is now announcing that one of its aircraft is missing and presumed lost.
This is the fourth shoot-down over a period of 2-1/2 years (September '62, October '63, July '64, and January '65). [1-1/2 lines of source text not declassified]
We believe the Chinese are using surface-to-air missiles, but we have less information than we would like on how many there are and where.
[1 paragraph (5 lines of source text) not declassified]
McG. B
最後一句讓我感慨，到了1965年初美方對於老共地對空飛彈的數量及部署區域仍然並不太清楚，這時的危險性其實比三年前剛出大陸任務時還要高，但是第三十五中隊仍然繼續深入鐵幕，直到第五架U-2(黃榮北)被擊落之後，才停止進入內陸的偵照任務，所以國軍U-2飛行員的英勇確實值得後人緬懷。
