(S (S (BASENP (DT The) (NN program)) (VP (VBZ has) (VP (VBN been) (VP (VBN used) (S (VP (TO to) (VP (VB manage) (NP (BASENP (DT the) (JJ large) (NN case) (NN load)) (SBAR (WHNP (WDT which)) (S (VP (VBZ has) (VP (VP (VBN accumulated) (PP (IN since) (NP (DT the) (NP (NP (BASENP (NNP September) (NN 11)) (COMMA ,) (BASENP (NN 2001))) (NNS attacks))))) (COMMA ,) (S (VP (VBG leaving) (S (BASENP (NNP US) (NNS officials)) (ADJP (JJ free) (S (VP (TO to) (VP (VB concentrate) (PP (IN on) (NP (NP (DT the) (NP (QT (DQL ``) (BASENP (JJ high) (NN value)) (DQR '')) (NNS suspects))) (SBAR (WHNP (WP who)) (S (VP (VBP are) (VP (VP (VBN kept) (PP (IN under) (BASENP (NNP US) (NN control)))) (PP (IN at) (NP (BASENP (JJ secret) (NNS locations)) (PP (IN throughout) (BASENP (DT the) (NN world)))))))))))))))))))))))))))))) (PERIOD .))