Understandably, many people want extremist groups and the users who support them off Twitter, Facebook, YouTube and other sites. But a strategy that relies solely on blocking extremist messages ignores not only how hard it is to censor the Internet but also the political challenges of regulating speech. As unwanted as it may be, extremist social media is now part of the digital landscape. Combating the ideology and graphic propaganda of these groups will require engagement rather than mere censorship.
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