I didn't say that they would welcome a U.S. occupation of their country, or even a war such as we saw in Iraq. There are better ways to go about it.
However, as opposed to the idea that some have suggested, the Iranians don't hate the United States in general. They may be suspicious, but a lot them also seem to have a don't care attitude. Which happens when your own government is like that in Iran.
I personally think the best thing we could do is simply provide them the means to rebel, and put into place a leader that isn't religious based.
Another side note, I think the Iranians may be developing a nuclear weapon (or the capability) simply to prevent war. Bush and his Axis of Evil caused a lot of problems. But what we did see was an invasion of Iraq, which had no WMD. The other member, North Korea, didn't face such, but instead got sanctions and the like. So it could seem to the Iranian government to be a better choice to get a nuclear weapon, and thus ward off a possible invasion.