There is systemic influence by the US government on US institutions. To be clear I am only speaking to media influence and bias, not the veracity of the claim in question. Again look at the sarin example or consider how readily this would have been reported if it were about an enemy of the United States.
Your point about international media outlets is taken and it is the best evidence of how less-biased outlets feel about the story. I can't find the story on Russia Today or Al-Jazeera for example.
I have a pretty high opinion of Al Jazeera, which has not run a story about how the NSA might have spied on pre-candidate Barack Obama, and a very very low opinion of Russia Today, which is likely to have at some point in the past run a story about how Obama is actually a space alien.
My point had nothing to do with the credibility of either of those outlets only that they both routinely publish stories critical of the United States and since they didn't publish this story then they must not have faith in it.
In short, I agree with you that lack of reporting from foreign outlets is indicative that they think there isn't enough evidence to report it.
Just to be clear we are talking about different things: You are talking about whether the claims are true, or more sensibly, whether they are supported by credible evidence. I am making a more narrow point about the fact that media institutions are strongly influenced^ by government and corporate interests. That is true independent of whether Tice's claims are.
^ Obviously foreign institutions are far less influenced by other foreign governments and are therefore more reliable when reporting on those foreign governments, though not always (e.g. Iraq WMD claims).
Your point about international media outlets is taken and it is the best evidence of how less-biased outlets feel about the story. I can't find the story on Russia Today or Al-Jazeera for example.