Why it’s better for fact-checking to be done in public

Critics of a Newsweek cover story by historian Niall Ferguson say the piece should never have been published because of the errors and flawed logic it contains. But isn’t it better if those kinds of mistakes are corrected in public view instead of behind closed doors?

Should Twitter have a built-in correction button?

Media advocates say Twitter should add a feature that allows users to correct an erroneous tweet by striking through a mistake after the fact, to prevent errors from being retweeted — but is such a thing really necessary, even if Twitter could implement it?