White House national security adviser Jake Sullivan on Sunday said the United States will continue seeking a nuclear deal with Iran as the country faces unrest. On CBS’s “Face the Nation,” moderator Margaret Brennan asked Sullivan if Iranian mass protests, which began after a 22-year-old woman died while in the custody of the state’s morality police for allegedly wearing a hijab improperly, changes the U.S.’s calculus in ongoing nuclear negotiations with Tehran. “We’re talking about diplomacy to prevent Iran from ever getting a nuclear weapon,” Sullivan said. “If we can succeed in that effort, and we are determined ... (full story)