FAA personnel at both Reagan National and Dulles airports notified the Secret Service.
( ( ( FAA personnel ) ( at ( both ( Reagan ( National ( and ( Dulles airports ) ) ) ) ) ) ) ( ( notified ( the ( Secret Service ) ) ) . ) )
(ROOT (S (NP (NP (NNP FAA) (NNS personnel)) (PP (IN at) (NP (DT both) (NNP Reagan) (NNP National) (CC and) (NNP Dulles) (NNS airports)))) (VP (VBD notified) (NP (DT the) (JJ Secret) (NN Service))) (. .)))
FAA personnel at both airports contacted the Secret Service.
( ( ( FAA personnel ) ( at ( both airports ) ) ) ( ( contacted ( the ( Secret Service ) ) ) . ) )
(ROOT (S (NP (NP (NNP FAA) (NNS personnel)) (PP (IN at) (NP (DT both) (NNS airports)))) (VP (VBD contacted) (NP (DT the) (JJ Secret) (NN Service))) (. .)))