It would be ironic if Irans nuclear sites were destroyed not from the air but from the ground, from BELOW the ground.
Its possible. I have been working on a theory of instead of of ICBM’s deliver their payload by the air but under the earth. They would burrow through the earth and destroy the underground bunkers. But there are many technical problems such as the missile must be able to withstand the high temperatures and pressures of the earth. Its plausible. I read a technical manual of this such delivery system.