Not to detract from your point, but you neglected two of the archetype of the tragedies arising from State-controlled media propaganda:
The role of the Serbian, Croatian and Bosnian media in the wars following the break up of Yugoslavia[1].
The role of state controlled radio and TV in the Rwandan genocide[2][3]. To quote from [2]:
From October 1993 to late 1994, RTLM was used by Hutu leaders to advance an extremist Hutu message and anti-Tutsi disinformation, spreading fear of a Tutsi genocide against Hutu, identifying specific Tutsi targets or areas where they could be found, and encouraging the progress of the genocide. In April 1994, Radio Rwanda began to advance a similar message, speaking for the national authorities, issuing directives on how and where to kill Tutsis, and congratulating those who had already taken part.
The role of the Serbian, Croatian and Bosnian media in the wars following the break up of Yugoslavia[1].
The role of state controlled radio and TV in the Rwandan genocide[2][3]. To quote from [2]:
From October 1993 to late 1994, RTLM was used by Hutu leaders to advance an extremist Hutu message and anti-Tutsi disinformation, spreading fear of a Tutsi genocide against Hutu, identifying specific Tutsi targets or areas where they could be found, and encouraging the progress of the genocide. In April 1994, Radio Rwanda began to advance a similar message, speaking for the national authorities, issuing directives on how and where to kill Tutsis, and congratulating those who had already taken part.
[1] http://en.wikipedia.org/wiki/Role_of_the_media_in_the_Yugosl...
[2] http://migs.concordia.ca/links/RwandaRadioTranscripts.htm
[3] http://news.bbc.co.uk/2/hi/africa/3257748.stm