William O. Douglas,
City of Chicago v. United States…
“ A decision to investigate indicates that a substantial question exists under the statutory standards. The Commission's report therefore deals with the merits. We cannot say that an answer that discontinuance should not be allowed is agency 'action,' while an answer saying the reverse is agency 'inaction.' The technical form of the order is irrelevant. In each case the Commission is deciding the merits. ”
