Uploaded by AlJazeeraEnglish on 29 Jan 2012 - A team of inspectors from the UN nuclear agency, the IAEA, begins a three-day visit to Iran, to try to determine the purpose of the country's nuclear programme.
The visit comes at a time of heightened tension between Iran and the West.The west is increasing sanctions on Iran's oil industry, and there are threats from Tehran that it could retaliate by pushing the price of oil up to $150 a barrel.
Mohammad Marandi, an associate professor of American Studies at Tehran University, told Al Jazeera: "If Western regimes try to strangle the Iranian people and to hurt the Iranian economy severely, then the Iranians will have no option but to punish them."
Watch the full interview here and a timeline showcasing international efforts to stop Iranian nuclear proliferation.