I'm not sure what Iran having nukes does other than change the power dynamics in the Middle East to one where Israel can't bomb civilians with such impunity...
I think most people in the middle east will tell you that Iran acquiring nuclear weapons is bad. As I'm sure you're aware, they are a major supporter of terrorist organizations.
I'm aware that the present is informed by the past. 1953, like 1979, being a year in the past.
Discussing what terrorism is, in this context, is rather complicated. Especially speaking as a Brit, and knowing rather a lot of other dates, such as 1917.