My earlier post about Obama and the oil well made me remember this older news story from 2006. Reuters got into some hot water for circulating this image of an F16 firing missiles over Lebanon. As it turned out the jet is actually defensive flares used to decoy surface to air missiles. On closer inspection only one flair was even dropped - apparently the clone stamp was used to create the additional "missiles." Reuters responded by cutting off the freelance photographer who submitted the image and removed his previous contributions from their archive.
In a similar gaffe Reuters also accepted an image that to me looks clearly (and poorly) photoshopped. The smoke was duplicated the make the damage in this photograph from the Mid East look worse.