U.S. Secretary of State John Kerry says ''tough decision'' remain, but negotiators are making progress on a nuclear deal with Iran. Rough Cut (no reporter narration)
ROUGH CUT (NO REPORTER NARRATION) STORY: The United States and other major powers are not in a rush reach a nuclear agreement with Iran, though Washington and its partners will not negotiate with Tehran indefinitely, U.S. Secretary of State John Kerry said on Thursday. "We're here because we believe we are making real progress," Kerry told reporters in the Austrian capital, Vienna. "We will not rush and we will not be rushed." However, he cautioned that "we are not going to sit at the negotiating table forever," and added that "tough decisions" must be made soon.