Information which, if disclosed, could cause identifiable damage to the U.S., is designated as what?

The designation for information that, if disclosed, could cause identifiable damage to the U.S., is classified as "Confidential." This classification indicates a moderate level of sensitivity. Specifically, information labeled as Confidential is protected because its unauthorized disclosure could cause damage to national security interests, but it does not reach the threshold of more severe classifications like Secret or Top Secret, where the potential damage is considered greater.

In the context of these classifications, it’s essential to understand the hierarchy: Top Secret is reserved for information that could cause exceptionally grave damage; Secret is for information that could cause serious damage. Confidential, therefore, serves as the baseline classification that recognizes the need for protection while also allowing for a certain level of access under secure conditions.