>>29
Nukes for Iran would be more of a bargaining chip than something to actually use. While they could go wild on the Arab world with the technology, they are still restricted by diplomacy because they are still worth something economically. Their whole economy depends on the export of oil, and trade with close neighbors like Russia, China, Turkey, Pakistan, and India.
Another reason they're probably chasing nukes is because of Persian psychology. I remember reading an excerpt from some book...I think it was called The Ayatollah Begs to Differ...But Iranians apparently have this insane need for one-up-manship. If their neighbors have something, they have to be better. Israel, India, North Korea, and Pakistan all defied the world and acquired nukes. They're probably feeling left out, especially since they vie for regional hegemony. They'll probably never use the nuke, but they will probably threaten others with it just so people listen to them.
Pakistan is actually a bigger nuclear threat, since apparently the main government gave up 'ownership' of their nukes. Not exactly sure what this means, since I haven't read too much into it yet, but at worst, it means Fundamentalist extremist could get their hands on the weapons more easily.
Iran does not have extremist/terrorist like Pakistan has. They may lean toward Fundamentalism, but like I said earlier, they still depend on diplomacy. Terrorist Pakistani tribes do not have this restriction.
In actuality, Iran is against terrorism. They were fighting the Taliban long before the USA, and Al Qaeda is still a problem for Iran, as the terrorist organization still kidnaps and kills members of their government and the Revolutionary Guard.
Although that's not to say they aren't sponsoring Hezbollah, which they most likely have a hand in, but that's just to screw with Israel...and maybe more recently, Saudi Arabia.