(FILES)This November 15, 2011 file photo [Getty Images]

(FILES)This November 15, 2011 file photo shows the US Treasury Building in Washington, DC. The US Treasury Department said it would "outline new steps the United States is taking to increase pressure on Iran" on November 21, 2011, amid renewed suspicion about Tehran's nuclear ambitions. AFP PHOTO/Karen BLEIER/FILES (Photo credit should read KAREN BLEIER/AFP via Getty Images)

AFP KAREN BLEIER