While the Freedom of Information Act, the Trade Secrets Act, and other statutes may generally protect certain categories of information from disclosure by an agency to the public, this protection does not justify withholding the information from GAO.
( ( While ( ( ( the Freedom ) ( of ( ( ( ( ( ( Information Act ) , ) ( the ( Trade ( Secrets Act ) ) ) ) , ) and ) ( other statutes ) ) ) ) ( ( may generally ) ( ( ( protect ( ( certain categories ) ( of information ) ) ) ( from disclosure ) ) ( by ( ( an agency ) ( to ( the public ) ) ) ) ) ) ) ) ( , ( ( this protection ) ( ( ( does not ) ( justify ( ( withholding ( the information ) ) ( from GAO ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN While) (S (NP (NP (DT the) (NN Freedom)) (PP (IN of) (NP (NP (NNP Information) (NNP Act)) (, ,) (NP (DT the) (NNP Trade) (NNP Secrets) (NNP Act)) (, ,) (CC and) (NP (JJ other) (NNS statutes))))) (VP (MD may) (ADVP (RB generally)) (VP (VB protect) (NP (NP (JJ certain) (NNS categories)) (PP (IN of) (NP (NN information)))) (PP (IN from) (NP (NN disclosure))) (PP (IN by) (NP (NP (DT an) (NN agency)) (PP (TO to) (NP (DT the) (NN public))))))))) (, ,) (NP (DT this) (NN protection)) (VP (VBZ does) (RB not) (VP (VB justify) (S (VP (VBG withholding) (NP (DT the) (NN information)) (PP (IN from) (NP (NNP GAO))))))) (. .)))
The GAO should know all information to prevent fraudulent politicians and officers. 
( ( The GAO ) ( ( should ( know ( all ( information ( to ( prevent ( fraudulent ( ( politicians and ) officers ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP GAO)) (VP (MD should) (VP (VB know) (NP (DT all) (NN information) (S (VP (TO to) (VP (VB prevent) (NP (JJ fraudulent) (NNS politicians) (CC and) (NNS officers)))))))) (. .)))