Core Viewpoint - The article discusses the potential use of the GBU-57 bunker buster bomb against Iran's nuclear facilities, particularly the Fordow facility, highlighting its capabilities and significance in military operations [1]. Summary by Relevant Sections - The GBU-57 is described as a heavy bunker-busting bomb, measuring 20 feet (approximately 6 meters) in length and weighing 30,000 pounds (about 13.6 tons) [1]. - It is noted as the second most powerful bomb in the world after nuclear weapons, capable of destroying deeply buried targets, which has earned it the nickname "bunker bomb" [1].