Israel says it first bombed Iran to stop it from being able to produce nuclear weapons and the “existential threat” they would represent.

The key question, however, is how much damage Israel has inflicted on Iran’s nuclear infrastructure, ostensibly the main aim of this war, along with destroying Iran’s conventional missile force. Israel has attacked facilities at Natanz,

The head of the International Atomic Energy Agency says there is a possibility of both radiological and chemical contamination within Iran’s main nuclear enrichment facility in Natanz.

Israel would likely need U.S. weapons to target some of Iran's nuclear facilities. CBS News' Ellee Watson has more.