The link to this story from the Voice of America tells of claims by the United States and Great Britain about the Iranian government jamming international satellite transmissions into that country.
http://www1.voanews.com/english/new...Block-Transmissions-by-VOA-BBC--80352412.html
http://www1.voanews.com/english/new...Block-Transmissions-by-VOA-BBC--80352412.html