What was the name of the leader who stopped the US from passing through New Orleans?

Which statement about the damages caused by the civil war is true?

17 million negroes cannot do as you suggest qnd wait for the hearts of men to change. tjis we cannot do unless we persue aggressively goals which all other americans achieved ove 150 years ago. how might martin luther king jr. respond to this statement?

How did radicals such as robespierre justify the use of terrors