On Thu, 31 Jan 2008 13:20:07 -0000 "Rod Beck" <[EMAIL PROTECTED]> wrote:
> Cables are mostly damaged by fishing in coastal areas (continental > shelf) or by deep undersea currents that erode the polyurethane > jacket that protects them. So it is crucial that the cable be buried > at least one meter and preferably two meters in coastal waters. The > big fishing boats scrape sea floor - the ecological equivalent of > surface or 'strip' mining. These boats scrap the ocean floor and can > hit the cables or even sever them. > In some areas, shark bites are a threat, too -- see http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel1/48/1267/00029600.pdf (subscription required for the full text), or http://www.tscm.com/phone/oceanic_cable.html --Steve Bellovin, http://www.cs.columbia.edu/~smb
