What should the consequence be for an individual who spreads disinformation or “fake news”?

Please just answer those three questions. This is not a paper, so you can just answer the question, no need to have introduction or conclusion.
Discuss:
Should the First Amendment apply to all activity on the internet? (W01)
What should the consequence be for an individual who spreads disinformation or “fake news”? (Explain libel law) (W02, W03)
Should online whistleblowers be held accountable for defamation? (W03)