Why?   All he said is he thinks Iran's bomb is inevitable, and that we should take diplomatic measures.  That's not even close to saying Iran's bomb is  a necessary great step towards world peace.  
I read GA's post, and didn't have much to add.  It's all just a guess.  One thing though.... Iran's labs haven't been secret for a few years now.    
http://news.bbc.co.uk/2/hi/middle_east/4617398.stm
http://www.atomicarchive.com/Almanac...cilities.shtml