Many Linux distributions, including Fedora and Ubuntu (on the alternative installation, at any rate), provide an installation option to encrypt your hard disk. This kind of full disk encryption has become so good and widely available that at least one academic paper has argued that it "can significantly hamper digital investigations, potentially preventing access to all digital evidence in a case." We all want the police to be able to do their jobs effectively, and since powerful encryption is causing them problems, why should this kind of technology continue to be available to anybody? If you've got nothing to hide, why should you care about encrypting your data?
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