Letter to the editor: According to your last edition' s anonymous article, we should all be required to carry identification cards and show them on demand. This opinion is wrong. After all, the writers of the article should not have asserted that the right to remain anonymous was trivial, unless they were prepared to put their names to that assertion. The reasoning above is most vulnerable to criticism on the grounds that it ['commits the same error in reasoning that it accuses the writers of committing', 'confuses two meanings of the term "anonymous"', 'attacks the integrity of the writers without knowing anything about them', "diverts attention from the content of the article by focusing on the writers' actions"]