; and communications with Government investigators, auditors, consultants and experts, the counsel of other parties, arbitrators and mediators, concerning an investigation, case or proceeding; and (6) the term product of discovery includes— (A) the original or duplicate of any deposition, interrogatory, document, thing, result of the inspection of land or other property, examination, or admission, which is obtained by any method of discovery in any judicial or administrative proceeding of an adversarial nature; (B) any digest, analysis, selection, compilation, or derivation of any item listed in subparagraph (A); and (C) any index or other manner of access to any item listed in subparagraph (A). (n) Sunset The authority of the Attorney General to issue a civil investigative demand under this section shall expire upon the expiration of the 5-year period which begins on the date of the enactment of this section. . 4. Comprehensive strategy to improve enforcement and administration (a) Development of strategy The Attorney General shall develop and implement a comprehensive strategy to improve the enforcement and administration of the Foreign Agents Registration Act of 1938 ( 22 U.S.C. 611 et seq.) that addresses the following issues: (1) The coordination and integration of the work of the agencies that perform investigations of alleged violations of the Act and bring actions (including criminal prosecutions) to enforce the Act with the overall national security efforts of the Department of Justice. (2) An assessment of the appropriateness of the exemptions provided under the Act that permit persons who represent the interests of foreign principals to avoid registering under the Act. (3) A formal cost-benefit analysis of the appropriateness of the fee structure under the Act. (4) An assessment of the value of making advisory opinions under the Act available in whole as an informational resource. (b) Review by Inspector General