If Iran and some other countries had arsenals of nuclear weapons would it keep aggressive criminal nations like the US and Israel in line?

Oh definitely, after all, if charles manson, jeffrey dahmer, and the boston marathon bomber all had better equipment, it would have kept the evil police officer's from being so aggressive in trying to catch them.

I guess it depends on how you see criminal. I guess you think we shouldn't have stopped the Nazi's then?? Figures.

In line it what way? It would not stop sanctions. Mutually assured destruction hasn't helped Russia that is currently floundering under sanctions has it? It will cause an arms race in the Middle East that will likely lead to the death of all of them. That cool with you?

Is the us justification for maintaining an arsenal of nuclear weapons one that is based on deterrence? Assuming that it is, how logical would it be to apply that thinking to all nations having these tools?

It might unless one of the three just said fuc k it" Pardon my language but that would be gist of making that final decision.

according to the typical retard genocidal american...nukes end wars and save lives...just like a magic pill! that is your excuse for dropping them on innocent people in Japan...so logic would dictate that if Iran had them it would save countless lives and end wars!!!! Iran should get some!!!!