Core Viewpoint - The U.S. Defense Intelligence Agency (DIA) has issued a preliminary and low-confidence assessment regarding a military strike on Iranian nuclear facilities, indicating that the evaluation is not a final conclusion and will be refined as more intelligence is gathered [1] Summary by Relevant Sections - **Assessment of Iranian Nuclear Facilities** - The DIA's assessment of the military strike on Iranian nuclear facilities is described as preliminary and of low confidence, emphasizing that it is not a definitive conclusion [1] - The agency highlights the inability to review the actual Iranian nuclear facilities that were attacked, stating that on-site inspections would provide the best information [1] - **Collaboration with Other Agencies** - The DIA is collaborating with the FBI and other agencies to investigate the leak of the assessment report [1]