The checkpoint featured closed-circuit television that recorded all passengers, including the hijackers, as they were screened.
( ( The checkpoint ) ( ( featured ( ( closed-circuit television ) ( that ( ( ( recorded ( all passengers ) ) , ) ( including ( ( ( the hijackers ) , ) ( as ( they ( were screened ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN checkpoint)) (VP (VBD featured) (NP (NP (JJ closed-circuit) (NN television)) (SBAR (WHNP (WDT that)) (S (VP (VBD recorded) (NP (DT all) (NNS passengers)) (, ,) (PP (VBG including) (NP (NP (DT the) (NNS hijackers)) (, ,) (SBAR (IN as) (S (NP (PRP they)) (VP (VBD were) (ADJP (JJ screened)))))))))))) (. .)))
All passengers got recorded at the checkpoint while they were being screened.
( ( All passengers ) ( ( got ( ( recorded ( at ( the checkpoint ) ) ) ( while ( they ( were ( being screened ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT All) (NNS passengers)) (VP (VBD got) (VP (VBN recorded) (PP (IN at) (NP (DT the) (NN checkpoint))) (SBAR (IN while) (S (NP (PRP they)) (VP (VBD were) (VP (VBG being) (VP (VBD screened)))))))) (. .)))