Be prepared for someone to take the first 5-10 minutes getting warmed up a getting their head into the zone, because many people had never been asked such a question, so they need time to come up with something. Don't count it against them. I learned some amazing things after a few years of asking this question and I feel like we made better hires overall.
When other people have to make personal sacrifices against their will for your free speech, then it's not free speech anymore. Like protesting and blocking the road so I cannot get to work and feed my family. Also, I shouldn't be forced to hear your bullhorn at 11pm at night through my bedroom window. So there are distinct limits in a populous society how much you can reasonably speak freely before you are screwing other people our of their freedoms and I think that's fair. There are violations of rights that occur, so you sue and use the due process until you can get the nation to agree on a better system.
Everything else mainly ends up with people killing each other.
"You took an oath, if you recall, when you first came to work for me. And I don't mean to the National Security Advisor of the United States, I mean to his boss... and I don't mean the President. You gave your word to his boss: you gave your word to the people of the United States. Your word is who you are."