The talk of the London financial district today are new efforts to make Britain the big place to trade China's currency, which is an increasingly popular activity in an era where the U.S. dollar is hobbled by the ongoing fiscal and debt mess in Washington. In Geneva today negotiators from the U.S. and five other countries will sit down with a delegation from Iran. They're working to resolve the stand-off over Iran's nuclear program. For years, the international community has relied on economic sanctions to keep up the pressure. Marketplace looks at the ongoing economic impact on every day Iranians. And, does having a vendetta help a person's job performance?