The complication with seeking to integrate Iran into the international community, is that Iran is not a democracy, it is a Mullocracy whose intention is to integrate its enemies of the international community, by way of subjugation to an Islamic hegemony, in alliance with the military capability of its Islamic counterparts: Turkey and Syria, etc. Furthermore, those Iranians who would respond to Berlusconi's suggestion, live in the west as exiles or refugees, and have no intention of returning to Iran, to make the world safe from Iran. To embark on a policy of integration with Iran, is akin to integrating a non-lethal amount of poison into one's diet, but the poison accumulates in one's system until the cumulate effect of that poison, is lethal. The only role for China and Russia, is for China and Russia to be made responsible for the consequences of not isolating Iran, in lieu of military action.
U.S. says working on initiative to de-escalate Syria fighting, with focus on Aleppo (Reuters)
from the article: Berlusconi 'hopes' Israel won't take military action against Iran