The map created using a simulation tool shows the devastating impact of a hypothetical U.S. nuclear strike on Tehran, Isfahan, and Qom.

Iran doesn’t have nuclear weapons. But it has enriched nuclear fuel to levels that put it within weeks of having enough fissile material for a bomb. Still, Iran hasn’t proved it can build a reliable nuclear device or miniaturize one to fit atop a ballistic missile.

But President Donald Trump dismissed the assessment of U.S. spy agencies during an overnight flight back to Washington as he cut short his trip to the Group of Seven summit to focus on the escalating conflict between Israel and Iran. “I don’t care what she said,” Trump told reporters. In his view, Iran was “very close” to having a nuclear bomb.