What would the US use to take out Iran’s nuclear facilities if it decided a military strike was needed?  Almost certainly the Massive Ordnance Penetrator (MOP) GBU-57A/B – the most powerful “bunker buster” in existence: a 13,000 kilogram weapon – developed in parallel with Iran’s underground Fordow Nuclear Fuel Enrichment Plant – than can smash through 20 metres of reinforced concrete before exploding.

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Source: National Post