The New York Times and other media outlets repeatedly labeled the Norway killer Anders Behring Breivik a “Christian fundamentalist,” and continued to do so for several days without apparently investigating whether it was accurate. The New York Times used that label in its leading paragraph. Why would they use such a defamatory label before confirming the facts? Other media outlets were much more cautious and avoided using simplistic labels.
I immediately questioned the label and looked for evidence of it when I heard it. It was relatively easy for me to find strong indications that it was false. The journalists at the NY Times and The Atlantic apparently did not, as discussed here by Mollie Ziegler Hemingway on the Get Religion blog.