U.S. Congress, Joint Committee on the Economic Report, Subcommittee on Economic Stabilization. (1955). Automation and technological change: Hearings … 84th Congress, 1st session, October 14–28, 1955. Washington: U.S. Government Printing Office, pp. 14–27 · 1955-10-14
Read it with this context. Its scope (individual workers whose specific skill becomes obsolete) and Diebold’s oral qualification on p. 28: he knows of very few layoffs due to automation; mostly people shifted jobs within firms.
Why: Shown alone, the sentence can read as a claim of widespread technological unemployment.