As this exchange shows, Secretary Rumsfeld was not in the NMCC when the shootdown order was first conveyed.
( ( As ( ( this exchange ) shows ) ) ( , ( ( Secretary Rumsfeld ) ( ( ( ( was not ) ( in ( the NMCC ) ) ) ( when ( ( the ( shootdown order ) ) ( was ( first conveyed ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN As) (S (NP (DT this) (NN exchange)) (VP (VBZ shows)))) (, ,) (NP (NNP Secretary) (NNP Rumsfeld)) (VP (VBD was) (RB not) (PP (IN in) (NP (DT the) (NN NMCC))) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NN shootdown) (NN order)) (VP (VBD was) (NP (JJ first) (NNS conveyed)))))) (. .)))
Secretary Rumsfeld heard the shootdown order firsthand.
( ( Secretary Rumsfeld ) ( ( ( heard ( the ( shootdown order ) ) ) firsthand ) . ) )
(ROOT (S (NP (NNP Secretary) (NNP Rumsfeld)) (VP (VBD heard) (NP (DT the) (NN shootdown) (NN order)) (ADVP (RB firsthand))) (. .)))