Unless you are willing to put boots on the ground, long term, you will not effect regime change or policy changes of the radical Muslim theocracy that will ultimately prevail in Iran. Therefore, a bunker buster attack may be but a precursor for a larger incursion.
Radical eh? Some country has been trying that for 250 years. It's been a little messy, but I kind of like it.
A lot of Americans are selling Iranian people short. Kind of like Democrats do to my black countrymen.