Inside Story - Is Iran ready for change?

Relations between the West and Iran appear to be warming as Tehran offers to limit its nuclear programme. The Iranians are said to have put together a new proposal that would mean it stops making near weapons-grade nuclear material in return for sanctions being relaxed. William Hague, British foreign minister said, "A substantial change in British or Western policies requires a substantive change in that programme. "However, we must test the Iranian government's sincerity to the full and it is important that our channels of communication are open for that." So what impact could closer ties with the West have on Iran's neighbours?