What was a major reason that slavery expanded in the south in the first half of the 1800s?

In 1944, the supreme court upheld the authority of the u.s. government to order the internment of a minority group in the interest of national security, even though there was no evidence that any members of this group were disloyal to the united states. should the same policy be applied today against u.s. muslims or muslim immigrants? why or why not? are these forms of internment different from native reservations? if so how? if not, why?

What is the term for a short statement about history that has not been yet been proved

What is domino theory? how did domino theory impact the us involvement in the vietnam war