Six world powers are arguing with Iran over its nuclear program. On Thursday, an ex-United Nations nuclear officer told that the agreement which is being argued will be a challenge the U. N. to put an end on the increase of nuclear arms.

The discussions in Geneva were held because of request made by Iran's chief negotiator.

As per IRNA, a state-controlled news agency, no such contract that does not consist of right for the enrichment of uranium would be accepted. He also told that suspending uranium enrichment would be considered as `red line' of the rule.

Olli Heinonen, former deputy director general of the International Atomic Energy Agency, told that other non-nuclear countries would face the rejection to implement a resolution. This indicates that the U. N. is not willing to stop a country from gaining ability of nuclear weapons.

Robert Einhorn says, "What is preferable, a heavily constrained and monitored (Iranian) domestic enrichment program, or no agreement and Iran getting nuclear weapons, or using force to try to stop Iran from getting nuclear weapons?" He has served out as the special adviser of State Department for prevention and arms control from the year 2009 until the summer.

Misztal tells that permitting Iran enrich uranium would allow them to permit all those technologies that are required to make nuclear weapons.