A classified preliminary U.S. intelligence report suggested that the Trump administration’s initial assessment of damage to Iran’s nuclear program from U.S. strikes was overblown.

An assessment from the Defense Intelligence Agency, the Defense Department’s intelligence wing, surveyed the damage from the United States’s B-2 strikes with 30,000-pound bunker-buster munitions and smaller follow-up strikes from Israel’s air force, sources told several outlets. Based on information gathered from a U.S. Central Command assessment, the DIA estimated that the strikes on the nuclear facilities, particularly the Fordow fuel enrichment plant, set Iran’s nuclear program back by less than six months.