No press briefing has been held for months, as the defence department belatedly or inaccurately releases figures The Pentagon is taking a “shameful approach” to releasing information about US casualties in the Iran war, Leon Panetta, a former defence secretary and CIA director, has told the Guardian. The defence department has not held a press briefing for two-and-a-half months. Officials have faced accusations that they are engaged in a cover-up designed to hide the true cost of Donald Trump’s war of choic…