"Think Progress" lies, and the media eats it up
The theme:: a bunch of people show up with guns to intimidate a meeting of Moms Demand Sense for Gun Control. The reality: the photo was taken from the side, they are actually posing for a photo. But the media appears to have eaten it up.
UPDATE: the New York Times runs the picture and a story:
"“I was terrified,” said the woman who helped coordinate the meeting and who spoke on the condition of anonymity because she said she feared for her safety. “They didn’t want to talk. They wanted to display force.”"