Is there a difference between reporting on public and private figures?
Yes. A private figure claiming defamation—your neighbor, your roommate, the guy who walks his dog by your favorite coffee shop—only has to prove you acted negligently, which is to say that a “reasonable person” would not have published the defamatory statement. A public figure must show “actual malice”—that you published with either knowledge of falsity or in reckless disregard for the truth. This is a difficult standard for a plaintiff to meet.