A short memo to to Israeli Defense Minister Barak, who seems oblivious to the economic consequences of what he is asking Russia and China to do.
As of 2005, Russia was Iran's 7th largest trading partner.
As of 2007, China's trade with Iran exceeded 20 billion (US) dollars.
Why would Russia and China do something to throw a monkey wrench into this?
There is no logical or compelling reason for them to.