US and Russia to propose ban on WMD in Middle East

This, according to a report by Julian Borger in today's Guardian.  Perhaps a ploy to defuse any upcoming histrionics from Mr. Ahmadinejad at this week's Nuclear Non-Proliferation Treaty conference?  Or to persuade the Egyptian delegation from hammering on Israel's undeclared arsenal?  The US is reportedly also going to divulge the exact size of its own nuclear arsenal.  Perhaps a ploy to get the Iranians to "come clean"?

I cannot imagine Mr. Netanyahu - he of the everlasting Iranian existential threat - ever, ever seeing any upside in Israel being pressured to either divulge, or eliminate, its arsenal.

And I'm puzzled that I've seen no other report on this development.