Circular reporting is when a reporter gets information for a story from other reporters instead of from the original source. It means that reporters are getting their information from each other instead of getting it straight from the people who are most knowledgeable about it. For example, if a reporter wants to write a story about what happened at a certain event, instead of talking to the people who were there, they might talk to other reporters who were there to get the information they need. This isn't always a good idea because the information can be biased or untrue if it isn't based on the original source.