At this time the FAA had no contact with the military at the level of national command.
( ( At ( this time ) ) ( ( the FAA ) ( ( ( had ( ( no contact ) ( with ( the military ) ) ) ) ( at ( ( the level ) ( of ( national command ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN At) (NP (DT this) (NN time))) (NP (DT the) (NNP FAA)) (VP (VBD had) (NP (NP (DT no) (NN contact)) (PP (IN with) (NP (DT the) (NN military)))) (PP (IN at) (NP (NP (DT the) (NN level)) (PP (IN of) (NP (JJ national) (NN command)))))) (. .)))
AFter 9/11 procedures were changed so they could easily contact each other.
( ( AFter ( 9/11 procedures ) ) ( ( were ( changed ( so ( they ( ( could easily ) ( contact ( each other ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP AFter) (CD 9/11) (NNS procedures)) (VP (VBD were) (VP (VBN changed) (SBAR (IN so) (S (NP (PRP they)) (VP (MD could) (ADVP (RB easily)) (VP (VB contact) (NP (DT each) (JJ other)))))))) (. .)))