Original sentence: Mr Seigenthaler showed this by contacting Wikipedia founder Jimmy Wales in October 2005, who undertook the unusual step of requesting that the false information be deleted from the article's version logs—as a result, the unredacted versions of the article can only be viewed by Wikipedia administrators.Seigenthaler showed that he had failed to understand the wiki mechanism used on the Wikipedia, and he had failed to click on the edit this page button, which is clearly shown in bold on any wikipedia page
Edited sentence: Seigenthaler contacted Wikipedia founder Jimmy Wales in October 2005, who undertook the unusual step of requesting that the false information be deleted from the article's version logs—as a result, the unredacted versions of the article can only be viewed by Wikipedia administrators