In order to cripple the ability to communicate during the mass protests in the streets of Egypt, the government blocked access to the Internet. The graph above, created by Craig Labovitz of Arbor Networks, shows the sudden Egyptian Internet blackout.
In this article by The Huffington Post, Internet intelligence authority Renesys is quoted as saying:
Critical European-Asian fiber-optic routes through Egypt appear to be unaffected for now. But every Egyptian provider, every business, bank, Internet cafe, website, school, embassy, and government office that relied on the big four Egyptian ISPs for their Internet connectivity is now cut off from the rest of the world. Link Egypt, Vodafone/Raya, Telecom Egypt, Etisalat Misr, and all their customers and partners are, for the moment, off the air. [...] Virtually all of Egypt's Internet addresses are now unreachable, worldwide.
Meanwhile, U.S. senator Joe Lieberman liked the idea of shutting off the Internet so much, he's introduced a bill that would allow the U.S. government to turn off the Internet at the first sign of a "Cybersecurity Emergency". Unlike Egypt, however, Slate argues that such a kill-switch would be logistically impossible in the United States.
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