When it comes to convincing the world of the veracity of its case against Iran in the alleged plot to assassinate the Saudi ambassador to Washington, the United States has an intelligence problem.
While US diplomats would like to see more of the evidence made public as part of the push to get tough with Iran, intelligence officials are balking at any more public disclosures of evidence, for their own serious reasons.
The result, some officials and analysts say, is that the US is unlikely to be able to make a convincing case for international action in venues where it would count most, such as the United Nations Security Council.