(CNN) Sources: The US has assessed that the attack on Saudi oil facilities originated inside Iran. Quoting,

The US has told at least one US ally in the Middle East, that they have intelligence showing that the launch was “likely” coming from staging grounds in Iran, but they have not shared that intelligence yet. “It is one thing to tell us, it is another thing to show us,” said a diplomat from the region.

The intelligence may have been obtained via cutting edge technology, epitomizing the ultimate in abilities of technical collection.

The question: To share or not to share? For the sake of preserving secrecy of the methods, it might be best not to.