; and (II) any additional information the Secretary of Labor determines disclosure of which would impede a continuing investigation, if such information is disclosed once such disclosure would no longer impede such investigation, unless the Secretary of Labor determines that disclosure of law enforcement techniques, procedures, or information could reasonably be expected to risk circumvention of the law or disclose the identity of a confidential source. (iv) Privacy of information The Secretary of Labor investigating an alleged reprisal under this section may not respond to any inquiry or disclose any information from or about any protected individual alleging such reprisal, except in accordance with the provisions of section 552a of title 5, United States Code, or as required by any other applicable Federal law. (c) General provisions (1) Rights retained by employee Nothing in this section shall diminish the rights, privileges, or remedies of any protected individual under any Federal or State law, or under any collective bargaining agreement. (2) Liability Notwithstanding any other provision of law, a protected individual shall be immune from civil and criminal liability with respect to a disclosure by the individual if the individual would be protected from reprisal under subsection (a) for making the disclosure. The protected individual shall bear the burden of proving that the individual would be protected from reprisal under subsection (a) for making the disclosure. (3) Nonenforceability of certain provisions waiving rights and remedies or requiring arbitration of disputes (A) Waiver of rights and remedies Except as provided under subparagraph (C), the rights and remedies provided for in this section may not be waived by any public or private agreement, policy, form, or condition of employment, including by any predispute arbitration agreement. (B) Predispute arbitration agreements Except as provided under subparagraph (C), no predispute arbitration agreement shall be valid or enforceable if it requires