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Al Weimorts (left), the creator of the GBU-43/B Massive Ordnance Air Blast bomb, and Joseph Fellenz, lead model maker, look over the prototype of the bomb before it was painted and tested. (Courtesy photo)
Al Weimorts (left), the creator of the GBU-43/B Massive Ordnance Air Blast bomb, and Joseph Fellenz, lead model maker, look over the prototype of the bomb before it was painted and tested. (Courtesy photo)

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Why did the US use the MOAB?

CNN's Nick Paton Walsh says one reason the US may have decided to drop the "mother of all bombs" in Afghanistan is to send a message to the Taliban insurgency.

Why did the US use the MOAB?

CNN's Nick Paton Walsh says one reason the US may have decided to drop the "mother of all bombs" in Afghanistan is to send a message to the Taliban insurgency.