Thanks for the link. This article by Gosztola on salon.com questions Eichenwald's claims regarding Snowden a gives some compelling arguments against them. I do not think that is an attack ad hominem. Of course, after reading both articles, one may get an impression that Eichenwald cannot be trusted. But whether that is so or not, one needs to decide for himself.
The fact that rmxt brought up some problems with a different story that Eichenwald wrote in this context is an ad hominem. Besides, there's no need to trust Eichenwald, the stories he links to are written by others, and the bulk of his article is argument, which you can agree or disagree with without any trust being required.
