OJR piece explores issue of “rewriting history”

In this piece for OJR.org, Elizabeth Zwerling, an associate professor of journalism at the University of La Verne in Los Angeles County, attempts to answer the question: Should editors delete or alter online content? She uses various examples from her experience and others, noting that the answer “seems to depend on the story, the publication and a variety of circumstances, which like the medium, are still evolving.”