Vice President JD Vance signaled Iran's stockpile of enriched uranium is still intact and in Iranian control, a potentially significant problem for closing off Iran's future path to a bomb. Iran has enough near-weapons-grade material for around 10 nuclear weapons.

Uranium-235 is essential for nuclear reactors and weapons, and for that, enrichment is necessary. The process starts by converting uranium ore into uranium hexafluoride (UF6) gas.

Both Vice President JD Vance and Rafael Grossi, the head of the International Atomic Energy Agency, acknowledged questions about the whereabouts of Iran’s stockpile of near-bomb-grade nuclear material.