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When a squirrel chewed through a cable and knocked him offline, journalist Andrew Blum started wondering what the Internet was really made of. So he set out to go see it -- the underwater cables, secret switches, and other physical bits that make up the net. For more information visit www.ted.com.

If you're having trouble watching this video, try downloading the latest version of Flash Player or contacting your IT department.

Have any comments or questions about our video editions of IMPO? Or do you have a video you'd like to see featured in one of our deployments? Email me at Rachel.Immel@advantagemedia.com.

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