Phone intercepts from Damascus

The evidence or one of them that the US is invoking about Syrian government responsibility is about intercepted phone calls from someone in the Syrian Ministry of Defense and a field officer. But the media don't bother with the contradiction.  CNN yesterday reported that the former and the latter were high ranking but other media said they were not. And if they were high ranking they would have been named. Furthermore, the Syrian government discovered months ago that there were US intercepts on their communications and fixed it accordingly: this was also reported in US media (I didn't sleep last night reading all there is on the matter). So the Syrian regime which pretty much learned how to be immune to US intercepts took a break just to yell in the phone about chemical weapons right after they used them? Why don't the Western media raise questions, damn it.