Salam please explain what is 'technical refreshment'? polishing up the B2??
ro gazoo, any body can find the procedure of how nukes woks, if we have designs of centrifuges then there is no issue of making it again. but an avg 40Ktn Nuke will cost nearly 90 million $... But the most necessary thing is raw material and power plant, For examply Germany can make a nuke withing 2-3 weeks because they have every strong infrastructure for Uranium/plotanium enrichment.. But iran is taking so long because they are lacking infrastructure...US has (5-6) B-2 bombers in Afghanistan and from last three months, they are working in their technical refreshment...( I read it in defense website but Hamid meer proved this in his talk show)
they are starting withdrawl from August 2011 and will finish by 2014...