An example of a time when citizen's right to free speech can be restricted is when their speech impedes national security. For example, Freedom of Speech was greatly restricted during wars (such as WWII), when national security depended on people keeping quiet to not leak information to foreign spies. This was expanded on by the usage of propoganda, and was usually enforced by Civil Officers. Freedom of Speech however generally is not restricted, even when it hurts another group, as seen in <em>National Socialist Party of America v. Village of Skokie</em>, which, while the Justice sympathized with the people of Skokie, it ruled that freedom of speech cannot be denied to even hate groups.
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Your answer should be 1964 :)
Japanese struck Pearl Harbor and Clark Field to try to gain military control of the Western Pacific. Even the oil from the Dutch East Indies and Rubber from British Malaya would give Japan the economic independence it needed.`