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...used for forced entry: http://bit.ly/QfXuO9 An R script uses NSIDC data to visualize arctic sea-ice, now at the lowest level since satellite observation began: http://bit.ly/QfXuOa Community milestones: CRAN passes 4,000 packages, and the Revolutions blog receives 2 million visits: http://bit.ly/QfXsFW An analysis suggesting playing baseball shortens lifespans provides a lesson on the difference between causality and association: http://bit.ly/QfXsFY Revolution R Enterprise receives Data Science Technology award: http://bit.ly/QfXsFX The Rcpp package can translate some R code to C++. Some perf...