Iran Nuclear Threat Explained

Nuclear weapon use probability: less than 2%. Iran had 60% U-235 enrichment (near weapons-grade) with estimated 2-week breakout time pre-strikes. Key nuclear sites status: Natanz (struck), Fordow (deeply buried, bunker busters used), Isfahan (damaged), Arak (unknown). Why nuclear use is extremely unlikely: no confirmed assembled weapon, delivery challenges, MAD doctrine, regime survival instinct.