Submarine cables are critical global infrastructure that form the backbone of global information economy

Submarine cables represent critical communications infrastructure, as they form the backbone of the Internet and global e-commerce. Such cables, typically consisting of optical fibers laid along the ocean floor in a bundle no larger than a garden hose, carry over 95 percent of transoceanic voice and data communication. U.S. telecom companies have worked rapidly to meet exploding consumer appetite for data, increasing the total circuit capacity of transoceanic cables landing in the U.S. by more than 1,000 fold since 1995.

There is no substitute for these underwater cables in case of damage. The earth’s satellites can carry no more than seven percent of U.S. international voice and data traffic. But worldwide, nearly 100 cable outages occur each year. The vast majority of cable outages are caused by bottom trawling fishing, dredging, and ship anchoring. Occasionally, cables are taken in an act of piracy, as occurred in 2007 when individuals in commercial vessels from Vietnam stole over 100 miles of cables on the high seas. Cable outages may disrupt governments, financial markets, and business operations and require costly repairs.