This is likely to be an extremely unpopular view but there are very legitimate reasons for a state to seek limits in the distribution of news, and limits to what its citizens communicate to outsiders. Most of these actions truly do have the welfare of the citizens and their crucial security in mind. These things are done to preserve their life most of the time.
Those of you raised in the west or who have lived your lives mostly in the west may not understand or remember the reality of living in weaker states. It is not my intent to write a thesis or anything approaching that so I'll stop this here. Just think about the real situation in Vietnam before going off on the usual tangents and starting the usual crusades.