Nuclear weapon - a sin

The West accuses Iran over its nuclear program. Iranian Supreme Leader Ayatollah Khamenei has reterated that his country considers the use of nuclear , chemical and similar weapons as a "great and unfirgivable sin". He clarified that it did not mean Iran would give up its rights to peaceful use of nuclear power and production of nuclear fuels. Iran is now under sanctions by the UN Security Council As well as by the US and European Union that have made it difficult for other coumtries to conduct trade with it, particularly in the energy sector , through normal channels.