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Apparently there is a botnet that has infected hundreds of thousands of computers around the world, and the FBI is going to take it down. They have already impounded infected servers, but they realized if they were to just shut the whole thing down, it would disable the Internet access for a whole lot of people. They are going to be shutting it down in July though. They have a website to visit at the bottom of the linked site to see if your computer is infected and if so, what to do about it.