@Kurt You raise many valid points. Touching on some of the highlights
_Regarding the nuclear ambitions of Iran may I point out the historical, bilateral, cultural and international relations shared by Iran and Pakistan. You mentioned this fact in your post. I firmly believe that those two Islamic states will draw closer together in the future. They share much history. What would be the shape of a future alliance between those two states is anybodies guess. But an alliance would create an Islamic nuclear armed bloc that would have to be reckoned with. Iran and Pakistan were once a part of what was considered Greater Iran. Them linking up again should not be discounted. There are signs that a strengthening of ties are already underway
Greater Iran - Wikipedia, the free encyclopedia
_Regarding the Iranian missile threat to Europe, I still stand by my historical thinking on Iran regarding Europe (NATO) as a new version of the Crusades. The wild card is what influence western thinking will have on the Iranian young people, If they adopt a more liberal view of Islam then things might cool down a bit. However if Iran for whatever reason takes a hard turn towards Islamic fundamentalism then all bets are off on where things will land. This chart below shows the current missile protection setup as established to protect Europe from a current and future missile threat
BBC News - Nato's missile defence shield 'up and running'