Call it Plan B for dealing with Iran, which recently revealed a long-suspected nuclear site deep inside a mountain near the holy city of Qom.*
The 13.6-tonne behemoth — called the “massive ordnance penetrator,” or MOP — will be the largest non-nuclear bomb in the U.S. arsenal and carry 2,400 kilograms of explosives.
The bomb is about 10 times more powerful than the weapon it is designed to replace.