Israel's finance minister says Iran's economy is close to collapsing because of intensifying sanctions. Read more.
Clearly, Iran's nuclear program is not for peaceful purposes. Why would an oil-rich country incur isolation and risk ruination and (nuclear) war for civilian nuclear power?
Endnote: President Obama's obsessive use of the term diplomacy is misleading and foolish. We're way beyond diplomacy with the clerical fascist regime--the missile-mad, turbaned tyranny. Crippling sanctions and covert operations (assassinations and sabotage) occupy a space between diplomacy and full-blown conflict. The next step, logically, could and perhaps should be an international, oil and gasoline blockade of the Islamist power that is bent on overthrowing the status quo (power relations among nations).