Iran's President Mahmoud Ahmadinejhad is in Zimbabwe sounding a defiant note against the West. Robert Mugabe welcomed him and gave his support to Iran's nuclear programme. Behind the scenes, diplomats say Iran has agreed to give the UN more access to its uranium enrichment plants. But Ahmadinejad is keeping up his strong anti-western rhetoric. Al Jazeera's Alireza Ronaghi reports from Tehran.