Iran nuclear protracted negotiations in December

In Vienna, Iranians and major powers tried in a final negotiating effort to reach an agreement on the Iranian nuclear issue.

But it seems already acquired a new round is necessary, certainly in December, also in Vienna or Oman.

The foreign ministers of the 5 + 1, -that is to say, China, USA, France, UK, Germany-Russia + say they want to reach a comprehensive agreement. But some issues still seem to stumble.

Remains an extension negotiations could weigh heavily in the political balance, both for the moderate Iranian President Hassan Rouhani and for US President Barack Obama.

The great powers require Tehran to reduce its nuclear capabilities, to prevent any military use. Iran, claims the right to an efficient civil nuclear power and calls for the lifting of economic sanctions.