Laugh all you'd like, but there's a reason Israel is so scared of them getting nuclear weapons. Iran has explicitly stated that they will "wipe Israel off the map" in the past, and there's no reason to doubt that claim.
There's a reason Israel is pushing for an attack on Iran BEFORE they get nukes. Why would you deny the fact that Iran is on the verge of getting nuclear weapons? The tests aren't for nothing, the facilities aren't for nothing.
Perhaps Iran would like a nuclear weapon to gain more respect within the region?
We stared down the Soviets who had thousands of nukes, and there was no invasion. But we should be scared of a country that doesn't even have a nuclear weapon, they merely want one. If I was surrounded by the world superpower's military I'd want a nuclear weapon too. Iran doesn't intend to use it's nukes, it's a political tool.
Now honestly, you can play the crazy muslim card all you want, but the people aren't buying it.
Iran is surrounded by U.S. bases on all sides. Iran is also one of the top 3 largest oil producers in the world. Iran nationalized their oil in 1953, and shortly thereafter suffered a coup d'état at the hands of the CIA & MI6, who installed their favorite dictator, The Shah. The oil flowed into the hands of the British owned Anglo-Iranian Oil Company, now more commonly known as BP.