In April 1972 Benson told general conference listeners that "I would highly recommend to you the book None Dare Call It Conspiracy by Gary Allen." Allen was a member of the Birch Society and editor of its official magazine.
[Source: Gary Allen, None Dare Call It Conspiracy (Rossmoor, CA: Concord Press, 1971). For Allen's prominent role in the Birch Society, see his, "The Life and Character of Robert Welch," American Opinion 28 (Mar. 1985): 127, and Allen's permanent position as a "Contributing Editor" of American Opinion since September 1967. From D. Michael Quinn, Ezra Taft Benson and Mormon Political Conflicts, Dialogue: A Journal of Mormon Thought 26:2 (Summer 1992), also in Quinn, The Mormon Hierarchy: Extensions of Power Salt Lake City (Signature Books, 1994), Chapter 3.]