The GBU-57, known as the Massive Ordnance Penetrator, could be the key for Israel to take out Iran’s Fordow Fuel Enrichment Plant. The MOP is a precision guided bomb designed to be carried by a B-2 Stealth Bomber and is the world’s largest non-nuclear bomb. WSJ explores why the MOP represents Israel’s best chance at destroying Iran’s nuclear facilities and why it can’t do it alone. Chapters: 0:00 The GBU-57 0:38 How it works 1:53 Why Israel needs it 3:17 Will America get involved? Equipped