; 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. (5) 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 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. (6) Semiannual report Not later than 180 days after the date of enactment of this Act, and every 6 months thereafter for 5 years, the Secretary of Labor shall submit a report to Congress, which shall include— (A) a list of any investigations for which the period was extended under clause (i) or (ii) of paragraph (2)(B)