"The source of Ghorbanifar's information, who would talk only on condition his name not be used for fear of his safety, said he told the CIA it could meet with three people involved in the purported shipment. Those people, including a man formerly in the Iraqi military, could take the Americans to a laboratory in Iraq where unspecified "material" is stored, the source said."
If it was five years ago, that would even give time for the courier to develop cancer (a problem in the story, as pointed out by Toskrin). So I think the odds are that it's the same story, perhaps with some new details. (Further evidence that Ledeen and Ijaz are on the same page here: they both say that OBL is hiding out in Iran.)