We often forget that the Internet is not as wireless as it seems. Most online data still flow through physical fiber-optic cables laid out across several hundred thousand miles of ocean floor. If a shark were to bite through a cable some or all of the Internet could come to a standstill. These days, however, observers spend less time worrying about underwater fauna than about Russia’s submarines, which have been taking a special interest in ocean-bed cables in recent years.

Read Here – Foreign Affairs