Nuclear experts believe Iran relocated more than 400 kg of highly enriched uranium—enough for 10 nuclear weapons—to a secret location. Here's what that would look like.

U.S. intelligence agencies had long assessed that, faced with the possibility of an attack on its nuclear facilities, Iran would try to move its stockpile.

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.