The U.S. and Israeli bombing of Iranian nuclear sites creates a conundrum for U.N. inspectors in Iran: how can you tell if enriched uranium stocks, some of them near weapons grade, were buried beneath the rubble or had been secretly hidden away?

Following last weekend¡¯s attacks on three of Iran¡¯s top nuclear sites ¡ª at Fordo, Natanz and Isfahan ¡ª President Donald Trump said the facilities had been ¡°obliterated¡± by U.S. munitions, including bunker-busting bombs.

But the U.N. nuclear watchdog, the International Atomic Energy Agency, which monitors Tehran¡¯s nuclear program, has said it¡¯s unclear exactly what damage was sustained at Fordo, a plant buried deep inside a mountain that produced the bulk of Iran¡¯s most highly enriched uranium.