Almaty

James Blitz

Iran's representatives led by their top nuclear negotiator Saeed Jalili (back 4th L) take part in talks on Iran's nuclear programme in the Kazakh city of Almaty on February 27, 2013 (ILYAS OMAROV/AFP/Getty Images)

Talks in Almaty on February 27 (AFP/Getty Images)

The latest meeting between Iran and world powers to try and resolve the dilemma over the Iranian nuclear programme is over. And once again, a shaft of light has emerged that will lead some to hope that military action over the Iranian programme might be averted.

After two days of talks in the freezing city of Almaty in Kazakhstan, Iran has told the US and five other world powers that it is prepared to hold a couple more meetings in March and April to try to resolve international concerns that it wants a nuclear bomb.

That said, few will want to overplay the significance of this move. Here are three reasons why many western diplomats will be cautious.