It originated with a conservative blogger, who twisted an accurate news story into a falsehood.

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And in so doing, perpetuating a falsehood that would only add to the bad taste in judgment had the Mayor and organizers gone through with the event.

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Is there anything you think that the media can or should do, or that campaigns can or should do to repair the damage from once a falsehood is broadcast or printed and repeated?

NPR: Campaign Attack Ads Call 'Facts' Into Question

"The SEC should never have allowed the ICI to claim it represents the interests of mutual fund investors, because it's a blatant falsehood, " says Edward Siedle of Benchmark Financial Services, a firm that investigates money management wrongdoing.

FORBES: Insult And Injury

How could this wonderful oncologist, someone who I had learned to respect for her compassion and thoughtfulness, have spoken such a blatant falsehood to my nervous patient?

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The law didn't criminalize all lying, just "a calculated, factual falsehood" about oneself, said Mr. Verrilli.

WSJ: Supreme Court Strikes Down 'Stolen Valor' Law

Mr Allason also had a previous expensive reverse when a High Court judge threw out a claim of malicious falsehood against the Daily Mirror in 1996.

ECONOMIST: Has he got writs for you

Another common example might involve an application for regulatory permission to market a new pharmaceutical, where there is an arguable error or even falsehood, but where the officer has no actual knowledge of the error or falsehood.

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As we explain below, the falsehood that GHG standards and fuel economy standards are unrelated gave the EPA legal cover to grant a waiver authorizing California to implement its own de-facto fuel economy program.

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