US MOAB bomb: What is a Massive Ordnance Air Blast bomb? How destructive is it?
Smoke rising from a GBU-43/B Massive Ordnance Air Blast bomb strike on an alleged ISIS cave and tunnel systems in the Achin district of the Nangarhar Province in eastern Afghanistan. (U.S. Department of Defense via AP)
Army experts carried out a controlled explosion in a field near the house this afternoon in St Albans
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The GBU-43B Massive Ordnance Air Blast Bomb, the largest non-nuclear bomb in the U.S. arsenal, can create a blast radius stretching a mile in each direction (Photo: DOD/Getty Images)