What is video art? Is it any different from simply watching telly? Continuing our series on 'difficult' art forms, Claire Armitstead turns on, tunes in - and finds herself in the middle of a baseball pitch
Robin Denselow on a sure-fire vision of hell on earth - Jonathan Kaplan's account of his life in the war zone: The Dressing Station: A Surgeon's Odyssey
Frances Wilson reads Jane Jordan's biography of Josephine Butler, and discovers a woman who kept a houseful of prostitutes - but not for the reasons you might think
The attacks in America may cause a change of heart in Hollywood, but what of the other arts? And what will be the effect on the creative scene in Britain? From dance to pop, Guardian critics assess the likely impact