The identity of that "Member State," which the IAEA continues to go out of its way to conceal, is important, because if it is Israel, it reflects an obvious interest in convincing the world that Iran is working on nuclear weapons.
As former IAEA Director-General Mohamed ElBaradei recounts on p. 291 of his memoirs, "In the late summer of 2009, the Israelis provided the IAEA with documents of their own, purportedly showing that Iran had continued with nuclear weapon studies until at least 2007."
The news media should be including cautionary language any time information from an unnamed "Member State" is cited as the source for allegations about covert Iranian nuclear weapons work. It could very likely be coming from a State with a political agenda. But the unwritten guidelines for news media coverage of the IAEA and Iran, as we have seen in recent days, are obviously very different.
(Note: You can view every article as one long page if you sign up as an Advocate Member, or higher).