How will the Russians react when Israel blows it up.

I hope we never live to find out!

The Israelis may be drunk with power and blinded by hubris, but surely they won't be that stupid or Russia might give them a bit of what for.

Israel better stop it now...but we're talkin' Gog and Magog here.

The plot thickens...

No, Israel has no justification whatever to stop it. That the Iranians have enriched uranium to power a nuclear power plant does not mean they have technology to produce a nuclear weapon. Weapons-grade nuclear material is twenty times more refined than anything the Iranians have equipment or know-how to make.
This is only a threat in the US and Israeli media, which sells exciting stories rather than debunking them.

See Iran's enriched uranium ready for bombs? Not hardly.

I guess only Israel is allowed to have nukes and no one else.