Though officials say they cannot put a precise figure on the trading of rials for dollars, they see it as a potential challenge to the sanctions, and one that the United States helped create.
By MATTHEW ROSENBERG and ANNIE LOWREY, New York Times
Fri, 08/17/2012 - 6:42pm
Though officials say they cannot put a precise figure on the trading of rials for dollars, they see it as a potential challenge to the sanctions, and one that the United States helped create.