No part of the consular and other commercial reports of the Department of Commerce, including circular letters to chambers of commerce, discussing partisan political, religious, or moral questions shall be published.
(Feb. 25, 1885, ch. 150, 23 Stat. 324; Feb. 14, 1903, ch. 552, § 10, 32 Stat. 829; Mar. 4, 1913, ch. 141, § 1, 37 Stat. 736.)