Israel believes a U.S. strike buried the enriched uranium under an Iranian facility, the official told reporters in Washington.

A senior Israeli official says Israel believes deeply buried stocks of enriched uranium at one Iranian nuclear facility hit by the U.S. military are potentially retrievable.

In the wake of its brief but bruising war with Israel, Iran is walking the calculated, fine line of escalating nuclear ambiguity to deter future attacks while keeping one hand extended for diplomacy.