Fred Halliday, 1946-2010 A leading authority on international relations, superpower rivalries and the Middle East has died. By Matthew Reisz 6 May
Martin Plant, 1946-2010 One of the world's leading experts on addiction has died. By Matthew Reisz 29 April
Blog confidential: Racist relations Each week, Dr Margot Feelbetter poses a dilemma and offers advice for readers to respond to online 25 March