Watch part two

How does the disclosure of Iran's second nuclear site affect global efforts for nuclear disarmament?

The surprise announcement has increased international pressure on Tehran ahead of its meeting next Thursday with six Western powers regarding its nuclear capabilities. 

Tehran says its uranium enrichment facility will not be operational for at least 18 months, and it claims no official notification requirements have been violated. 

Even so, one of Iran's main allies - Russia - agreed that the Islamic Republic had breached UN resolutions and called on Tehran to quickly prove its nuclear programme is peaceful, while another strong supporter - China - also urged Iran to cooperate with UN inspectors.

On today's programme we ask, what will it take to reduce the risk of nuclear weapons considering the current global security threats?

Joining Riz to discuss this is Richard Burt, the former US Ambassador, who was the chief US negotiator in the Strategic Arms Reduction Talks (START) with the former Soviet Union, and is currently a member of the Global Zero Commission, a group of international leaders working to eliminate nuclear weapons worldwide.

This episode of the Riz Khan show aired on Monday, September 28.