Why did racial violence increase after 1870? how did the federal government respond

they had nothing to do with it until the government finally got the recommendation to do what is needed which was to keep everything safe

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.

c. troops marched forward in close formation against newer, more accurate weapons