German source: It may be necessary to stop clock at Iran nuclear talks
It may be necessary to "stop the clock" at nuclear talks between Iran and world powers with a midnight deadline for a preliminary political deal approaching, as the two sides grapple with difficult issues, a German delegation source said on Tuesday.
"The mood is back and forth, a difficult struggle for a realistic solution that is acceptable to both sides," a German delegation source said. "It remains an open question whether we will succeed."
