Graphic detail | Bring out the big guns

How do America’s huge bunker-busting bombs work?

The Massive Ordnance Penetrator may struggle to wipe out the deepest nuclear facilities

Airmen look at a GBU-57, or Massive Ordnance Penetrator bomb, at Whiteman Air Base in Missouri, United States
Photograph: AP
|4 min read

Editor’s note: On June 22nd Iran time Donald Trump said that America had bombed Fordow, Natanz and Isfahan, three nuclear sites.

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