A Kremlin aide said on Tuesday that if the United States were to impose sanctions on Russia over Ukraine, Moscow might be forced to drop the dollar as a reserve currency and refuse to pay off any loans to US banks. Sergei Glazyev, an adviser to the Kremlin who is often used by the authorities to stake out a hardline stance but does not make policy, added that if Washington froze the accounts of Russian businesses and individuals, Moscow would recommend that all holders of US treasuries sell them. http://english.ahram.org.eg/News/95827.aspx