Reuters publishes doctored images of Beirut. When they are challenged, at least they are up to the standards of admitting it and withdrawing the images. Several hours later ABC uses the same doctored images for showing how badly Israel is hammering Beirut.
Afterwards somebody in the Reuters staff sends death threats to Charles Johnson, the author of LGF who pointed out the forgery. Reuters has told that they have suspended the person in question.
ps. the same person's photos about Qana disaster have been widely disseminated. The same person's photos of whom we were told that the ethics of photographers are so high that it is outrageous that anyone would even suggest that a professional photographer would go and doctor photos they take.
My suggestion: Make each professional digital camera have a secure chip with a unique public key/private key pair that is used to sign each photograph with the date and time of taking the photo, possibly a sequence number. This should be done so that nobody has access to reading or changing the private key from the card. Then whenever a photograph would be published, the publisher would also publish the original unaltered picture in a separate place where anyone could go and check that the photograph has not been tailored.