US media cautious on election gaffes
This has been the year of the big media gaffe in the US.
NBC News edited an emergency-call recording of neighbourhood watch volunteer George Zimmerman in a way that implied race as a factor in the shooting of the unarmed black teenager Trayvon Martin in Florida in February.
CNN and Fox News falsely reported that the Supreme Court had struck down the individual mandate at the heart of the Obama administration's health care overhaul.
ABC News wrongly suggested a link between a mass shooting in Colorado and the Tea Party.
Just last week during Hurricane Sandy, CNN repeated a false rumour about flooding at the New York Stock Exchange.