The objective needs to be remove the regime from power. Once it is gone there won't be a nuclear programme or long range missile programme to worry about.
The regime should have never been allowed into power in the first place. If the useless Jimmy Carter had actually done something in 1979 we would not have to deal with this now.
It would have been far simpler back then.
Yet again it appears the Iranian people will be abandoned to their fate and left under the control of the regime. Strange that Saddam, Gaddafi and Assad were all removed but many in the western establishment want to leave the regime in Tehran in power. I wonder why it is the regime has such support, my Iranian friends often ask me the same question.