Foreign affairs columnist Simon Tisdall looks at the impact on Iran's opposition supporters of the hardline stance taken by the supreme leader, Ayatollah Ali Khamenei.
The World Bank publishes a report today on how the global recession is affecting developing countries. Our economics correspondent, Ashley Seager, says the poorest parts of the world - especially Africa and eastern Europe - are being hit hardest.
Some 115 Britons have committed suicide with the assistance of the Dignitas clinic in Switzerland. The Observer's health correspondent, Denis Campbell, reveals the medical conditions from which they were suffering when they ended their lives.
As MPs elect a new Commons speaker to replace Michael Martin today, our Westminster correspondent, David Hencke, says there have been attempts to prevent the most radical reformer, John Bercow, being elected.
Wimbledon begins today, and our tennis correspondent, Steve Bierley, says Friday's withdrawal of the defending champion, Rafael Nadal, is a huge boost to Andy Murray's hopes.
