John Locke believed that the government had an obligation to the people it governed to protect their natural rights. If the government failed to do this, then the people had the right to do what?

Overthrow the government

Explanation:

If the government denies its people certain basic rights, that government can be overthrown.

yes

explanation:

the fighting words doctrine, in united states constitutional law, is a limitation to freedom of speech as protected by the first amendment to the united states constitution. in 1942, the u.s. supreme court established the doctrine by a 9–0 decision in chaplinsky v. new hampshire.