You can say whatever you want in the U.S., just as long as it isn't defamation, dangerous to the public(like yelling fire in a crowded movie theater(when there really isn't a fire). Freedom of Speech in our Bill of Rights in the Constitution, guarantees this so the public can never be silenced by a government. Although you can say whatever you want, if someone was to say something really controversial he/she is generally pressured to step down from their academic position.
Fact: Earthbound is the greatest game ever made







