PURCHASE OF BLOCKING SOFTWARE BY PUBLIC LIBRARIES IS UNCONSTITUTIONAL A Briefing Paper by Jonathan D. Wallace, Esq. jw@bway.net (revised November 9, 1997) The following is intended for use by free speech advocates to oppose the installation of blocking software such as Cyberpatrol, Surfwatch, NetNanny or Cybersitter in public libraries. Permitted uses include basing your own correspondence or ...