Please name and explain three instances in which the American policy stopped the spread of communism, and also three instances in which the American Policy failed the spread of communism?

In vernonia school district v. acton, the school district argued that a drug test was illegal under any circumstances. no student could refuse to take a drug test. drug tests were not given at random. drug testing was necessary to protect all students.

The inventor cocreated the film fred arts sneeze which was one of the first american movies

In 1819, what did the united states obtain from spain for $5 million?