Read this revision excerpt. A library is adding privacy screens to public computers used for tax forms and job applications. The draft focuses on protecting information from casual viewing in a busy room. [The screen manufacturer began as a family business that produced tinted glass for automobile dashboards.] The writer next explains that the screens narrow the viewing angle but do not replace secure passwords or careful logout practices. The passage concludes: Staff will post brief privacy reminders beside each workstation. Which revision judgment best fits the role of the bracketed sentence in the passage about computer privacy screens?