Bushehr nuclear reactor
Bushehr nuclear reactorReuters

With Iran refusing U.S. demands that it gut its uranium enrichment program, the two sides are now discussing a new proposal that would leave much of Tehran's enriching machines in place but disconnected from feeds of uranium, diplomats told The Associated Press (AP) Saturday.

The talks have been stalled for months over Iran's opposition to sharply reducing the size and output of centrifuges that can enrich uranium to levels needed for reactor fuel or weapons-grade material used in the core of nuclear warheads. Iran says its enrichment program is only for peaceful purposes, but Washington fears it could be used to make a bomb.

Iran and the powers failed to meet a July 20 target date for an agreement and have extended the deadline to November 24.

Ahead of the resumption of talks Friday, the New York Times reported that Washington was considering putting a new plan on the table that would focus on removing piping connecting the centrifuges.

That would allow the U.S. leeway on modifying demands that Iran cut the number of centrifuge machines from 19,000 to no more than 1,500.

Two diplomats told AP that Tehran, which would gain an end to sanctions as part of any deal, was initially non-committal at a bilateral meeting in August. But they say the proposal has now moved to being discussed at the talks Tehran is holding with the U.S. and five other powers, and that the Islamic Republic was listening closely.

Both diplomats demanded anonymity because their information is confidential.

While only a proposal, the plan would allow the Iranians to claim that they did not compromise on vows that they would never emasculate their enrichment capabilities, while keeping intact American demands that the program be downgraded to a point where it could not be quickly turned to making bombs.

Last week, Iran’s Deputy Foreign Minister Abbas Araqchi said his country and world powers remain far apart over Tehran's nuclear program and a "difficult road" lies ahead.

Asked how big the differences were, Araqchi told reporters, "Still big." He added, "We are always optimistic ... but we have a difficult road to go."

These comments appeared to be backed by U.S. negotiator Wendy Sherman, who said this week that Iran cannot convince the world that its current ability to enrich uranium is acceptable.

Iran has been taking an increasingly aggressive line in demanding its "right" to enrich uranium, with Iranian Supreme Leader Ayatollah Ali Khamenei recently saying Iran "needs" 19 times more nuclear centrifuges than the amount being offered by world powers.