text: Source Notes
  This division lists sources by page number. Where material appears in a paragraph, it
  lists both the page number followed by the paragraph number.
  1-2. “There is no better example…”: General Martin E. Dempsey, former Chairman of the Joint Chiefs
  of Staff, Joint Information Environment White Paper, 22 January 2013.
  2-40. “A strong case can be made…”: A History of U.S. Communications Security (U): The David G.
  Boak Lectures, Vol. II, National Security Agency, July 1981.