Name any two sections of society which constituted richer members of society from the middle class.

- "schenck v. united states, case in which the u.s. supreme court ruled on march 3, 1919, that the freedom of speech protection afforded in the u.s. constitution's first amendment could be restricted if the words spoken or printed represented to society a “clear and present danger.” "

- speech aimed to potentially create danger could be banned.

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porter is writing economic history because he is focusing on the cost of developing vaccines.

declare war, appoint military officers, sign treaties, make alliances