This
US and Israeli intelligence agree that two of Iran's three enrichment facilities are severely damaged or destroyed, the third facility is underground in a hardened bunker, only the US has bombers with the capacity to bomb this facility. (B2 )
en.wikipedia.org
Massive Ordnance Penetrator, sounds like the nickname you give to a guy who likes fat chicks.
What are the aims in this little adventure? Iran will immediately attempt to rebuild once this incursion is over, do the US want regime change? How well has that worked elsewhere?