Complete nonsense. If you voluntarily agree to not leak secrets and do so anyway its not protected under free speech. You also dont get jailed for speech but for the act of breaching some agreement or other law.
> Just look at all these people who went to jail for crimes related to illegal numbers (eg. piracy). Or people like Mildred Gillars. Or the various whistleblowers.
Of course it is. Anyway, I mentioned more cases where there is no voluntarily agreement.
> You also dont get jailed for speech but for the act of breaching some agreement or other law.
You can claim that for everyone who got jailed for speech.