San Juan Hill is the answer
The larger goal was uniting Americans around the war effort.
Cracking down on dissent would be a negative action in support of the larger, positive goal the government sought. The government wanted a fully united public in support of the war, and so it put out the message that that freedom of speech might have its limits in times of war.
The Huns are the invaders who came from Asia.
So this term is usually known as laws so absurd that it shouldn't even be a law. Examples are like "One may not eat oatmeal on their porch on Saturdays in ______". The term came from the idea that they shouldn't need to be stated and that they are just morally wrong. Or that one MUST do something because it is morally right to do that.
