They're not, but like in Pakistan, to do a protest you need to inform a larger audience; that needs TV and newspaper.

Also, Saudi kings lean towards America. America knew that if Saudi was on their side, they won't need to worry about anything. America probably made sure that Saudi censored this news and forced its people to stay in their homes, by whatever means necessary.

Also, we don't know how hard was Saudi's internet censorship in this matter. It already has a very advanced blocking system in place. Plus Youtube has blocked that video in Saudi.

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