You write a news story about an arrest that occurred over the weekend. Several other publications run your story. They are all owned by your paper's parent company or have contractual permission to run your stories. Later in the week, the man you identified in your story as the man who was arrested, comes forward and says he was nowhere near the incident. Turns out, the police report that you used as your source contained the wrong suspect name. Which of the following defenses would your paper most likely go to first, to defend itself from a libel claim?