Sigh, there are differences between tightly coupled networks, such as the electric power grid and loosely couple networks like the Internet. But there are also some similarities, such as electric grids use DC interconnections to limit how far AC disturbances propagate; the Internet uses AS interconnections to limit IGP disturbances from propagating.
http://sci.newsfactor.com/perl/story/20686.html The actual article requires payment to read http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000066000006065102000001&idtype=cvips&gifs=Yes
