Iran Strike No Problem

This according to Isaac Ben Israel, who planned the 1981 Israeli airstrike on Osirak:

One U.S. stealth plane, an F-117 or a B-2, can "drop its bombs (and) accurately destroy the targets the planners decided it should destroy... (It could) enter Iran, leave Iran, and the Iranians won't know it is there," he told a conference marking the 25 anniversary of Israel's attack in Iraq.

I can believe this, after the recent precision strike on Zarqawi. This in spite of supposed obstacles:

He ridiculed claims that the Iranians have learned a lesson from the Osirak strike and placed everything underground.
"These things are always built underground. It's not an Iranian invention," he said, adding that one of the bombs hit the ground in front of the designated spot and plowed through into the structure.

But what about sanctions?

...the world might try economic sanctions. Iran depends on imported refined oil products; its revenues from exporting crude oil are a source of enormous revenues and U.S. naval forces could block much of those in the Straits of Hormuz, noted Inbar.
He nevertheless cautioned that, "Societies and regimes have demonstrated great resilience in the face of economic sanctions and a capacity to withstand pain."