Israel's best chance at destroying the facility at Fordo could lie with a U.S.-produced bomb that's so heavy that it can only be dropped by a U.S. plane.

US President Donald Trump has been advised that launching a strike on Iran’s underground Fordow nuclear site would only make sense if the so-called “bunker buster” bomb could destroy the facility.

President Donald Trump is weighing using a "bunker-buster" bomb to take out a critical nuclear facility in Iran amid its conflict with Israel.

For Trump, it's personal as well as political. The gun is locked and loaded. His finger is on the trigger. All Donald Trump has to decide now is when to pull it - and destroy Iran 's nuclear weapons ...