The United States said Friday it would buy heavy water from Iran despite angry claims at home that it has already gone too far in granting Tehran nuclear sanctions relief. Officials said the purchase would cost $8.6 million, even as Republican lawmakers pressed for Iran to be excluded from any use of the US dollar or financial system. The deal was announced as Secretary of State John Kerry was to meet his Iranian counterpart to discuss ways of ensuring Tehran benefits from the nuclear deal it signed last year.
