is spreading a fake news or smearing hateful propagandas a right one can exercise under freedom of expression? Explain

No.

Explanation:

Most of the speech in United States is protected under the first amendment of the constitution. But if we let other people say anything they want without repercussion, there will be some cases where the freedom of speech can be exploited.

This was the reason why The Supreme court of United States created several exception for this :

obscenity,

fraud,

speech integral to illegal conduct,

speech that incites imminent lawless action,

speech that violates intellectual property law,

true threats,

and commercial speech such as advertising.

Speech that contains any of the things above can be subjected to further legal case depending on how much damage that speech created.

i need to see the answer to answer the question

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.