Iran has at least 15 operational fission-based nuclear devices, with plutonium cores.

ACCORDING TO ONE OF MY SOURCES

Chatham House Rules.

The only problem Harry is that Binny may not have been briefed that 

Iran already HAS nuclear weapons, using French supplied plute.  

You may quote me!   

My sources of remain confidential, but they are highly-placed.  

Iran has at least 15 operational fission-based nuclear devices, with plutonium cores.  

The enriched urtanium prtogramme is a blind, ie a deception tactic.  

CIA and MI6 are aware, but each is anxious not to upset Teheran, Paris or Berlin.     

Any Israeli attack on Iran has to be limited to conventional weapons, which ay not be sufficient, ie there ought to be a ground war, which is beyond the capabilities of Israel acting alone, nor should she have to act alone - other Western powers should be doing their bit to contain Iran.