Has anyone felt that they have had their right to free speech violated under the law?

Freedom of speech is, legally, the right to say what you want free from unwarranted government interference. Because speech can at times be damaging, there are various limitations on free speech that differ from government to government.

I would like to know if people have ever felt that this has been violated. Please, if possible, include:

(1) to the extent possible, what you said or wanted to say.
(2) your nation of origin.
(3) what you believe your right to free speech legally entails in that nation.
(4) why you think it was violated legally.