Whenever a witness summoned as mentioned in section 192 of this title fails to appear to testify or fails to produce any books, papers, records, or documents, as required, or whenever any witness so summoned refuses to answer any question pertinent to the subject under inquiry before either House, or any joint committee established by a joint or concurrent resolution of the two Houses of Congress, or any committee or subcommittee of either House of Congress, and the fact of such failure or failures
(a) Scope of assistance In order to assist the Congress in- (1) its analysis, appraisal, and evaluation of the application, administration, and execution of the laws enacted by the Congress, and (2) its formulation, consideration, and enactment of such modifications of or changes in those laws, and of such additional legislation, as may be necessary or appropriate, each standing committee of the Senate 1 and the House of Representatives shall review and study, on a continuing basis, the application