A US nuclear bunker could turn the Iranian attack into a mass casualty disaster The Trump administration could launch a nuclear attack on Mount Picax in Iran within a few days under pressure from Israeli Prime Minister Benjamin Netanyahu, American journalist Tucker Carlson warned, as international observers speculate what kind of weapon Washington might use. Why Conventional Bombs Can Fail Part of the Zagros Mountains, a prominent geologic anomaly: a mass of hard, dense granite within a range composed mostly of sedimentary rock. The Iranian tunnel complex is believed to lie 100-145 meters below the surface, potentially shielding it from a direct hit by the GBU-57 massive weapon penetrator, which can reportedly penetrate around 18 meters of concrete or 61 meters of soil. A possible nuclear option If the GBU-57 cannot penetrate Mount Makush, the US may turn to a nuclear bunker. The American arsenal offers several relevant options: the newer B61-13 (maximum yield of about 340-360 kilos) is designed to target certain hardened and large-area facilities through precision guidance. He may remain at Arsenal despite his retirement plans, according to CSIS. The B61-11 is the only US nuclear bomb with a dedicated Earth-penetrating capability. It has a reinforced casing and a delayed fuse so it can bury itself several meters into the ground before detonating, with an estimated yield of about 400 kilotons. Unlike the other two, the B61-11 was specifically developed to hit deeply buried targets, making it the most relevant option in discussions of a nuclear attack on Mount Pickaxe. B61-11: Dedicated Ground Penetrator In the wake of 9/11, Hoti explored the potential use of the B61-11 against Osama bin Laden's mountain stronghold in Afghanistan.