Iran, 6 powers seek to narrow nuclear differences

VIENNA - Iran and six world powers are hoping to narrow differences at a new round of nuclear talks, less than three months before an informal July deadline for a deal.

Negotiations resumed Tuesday, and substantial differences remain.

Iran argues it needs robust enrichment capacities to make low-enriched reactor fuel. The U.S, Britain, France and Germany want significant cuts to limit any potential effort to turn the program into making high-enriched material for nuclear arms. (AP)