By 9:08, the mission crew commander at NEADS learned of the second explosion at the World Trade Center and decided against holding the fighters in military airspace away from 
( ( By 9:08 ) ( , ( ( ( the ( mission ( crew commander ) ) ) ( at NEADS ) ) ( ( ( ( learned ( of ( the ( second explosion ) ) ) ) ( at ( the ( World ( Trade Center ) ) ) ) ) and ) ( decided ( against ( ( ( holding ( ( the fighters ) ( in ( military airspace ) ) ) ) away ) from ) ) ) ) ) ) )
(ROOT (S (PP (IN By) (NP (CD 9:08))) (, ,) (NP (NP (DT the) (NN mission) (NN crew) (NN commander)) (PP (IN at) (NP (NNP NEADS)))) (VP (VP (VBD learned) (PP (IN of) (NP (DT the) (JJ second) (NN explosion))) (PP (IN at) (NP (DT the) (NNP World) (NNP Trade) (NNP Center)))) (CC and) (VP (VBD decided) (PP (IN against) (S (VP (VBG holding) (NP (NP (DT the) (NNS fighters)) (PP (IN in) (NP (JJ military) (NN airspace)))) (PRT (RP away)) (PP (IN from)))))))))
The commander elected to stop restraining the fighters.
( ( The commander ) ( ( elected ( to ( stop ( restraining ( the fighters ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN commander)) (VP (VBD elected) (S (VP (TO to) (VP (VB stop) (S (VP (VBG restraining) (NP (DT the) (NNS fighters)))))))) (. .)))