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There's nothing like an old-fashioned mudslinging spat. And Microsoft is always glad to provide, when it comes to Google. The latest move: A Microsoft lawyer, speaking at the Progress & Freedom Foundation's Aspen Summit, has denounced Google's YouTube for irresponsibly taking advantage of copyright "loopholes" to get away with hosting a large library of allegedly pirated clips. In contrast, Microsoft's holier-than-thou video-sharing site Soapbox now uses digital fingerprinting technology to detect copyright-infringing files. This is the same Soapbox that was shut down for two months shortly after its launch because it was plagued by pirated media. And this was a lawyer for Microsoft, who, we imagine, would know a thing or two about legal loopholes.