We need to consider what will become of those people, both at home and abroad, who depend on such journalistic enterprises to keep them safe from various forms of torture, oppression, and injustice. “People do awful things to each other,” the veteran war photographer George Guthrie says in “Night and Day,” Tom Stoppard’s 1978 play about foreign correspondents. “But it’s worse in places where everybody is kept in the dark.” Ever since James Franklin’s New England Courant started coming off the presses, the daily newspaper, more than any other medium, has provided the information that the nation needed if it was to be kept out of “the dark.” Just how an Internet-based news culture can spread the kind of “light” that is necessary to prevent terrible things, without the armies of reporters and photographers that newspapers have traditionally employed, is a question that even the most ardent democrat in John Dewey’s tradition may not wish to see answered.