Are TV ad boycotts an effective way to protest speech? The question comes after a survivor of the school shooting in Parkland, Florida called on advertisers to boycott Laura Ingraham's show on Fox News because Inghram mocked him on Twitter. Student David Hogg put pressure on a number of advertisers to pull their ads; about half of them did. Ingraham called the approach a "Stalinist" approach to change society, while other critics said the best way to counter speech is with more speech.
So what is the most effective way to protest speech? Our guests weigh in: