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The introduction is supposed to define the topic as soon as possible, and then summarize the article. I rewrote the opening lines, which now define and summarize the article. Also, someone has done some good, descriptive writing. In particular the second paragraph of the introduction, and the some of the section on event cloaking is really well written (imho). ---- Steve Quinn ( talk) 20:22, 6 December 2010 (UTC) reply