5 Years After Blackout, Power Grid Still in ‘Dire Straits’

…The US power grid – three interconnected grids made up of 3,500 utilities serving 283 million people – still hangs together by a thread, and its dilapidated state is perhaps one of the greatest threats to homeland security, according to Bruce deGrazia, the president of Global Homeland Security Advisors and a former assistant deputy undersecretary for the Department of Defense, who spoke at an electricity industry conference in Shepherdstown, Va.

The slightest glitch on the transmission superhighway could upset the smooth distribution of electricity over thousands of miles of transmission lines and darken states from Ohio to New York in a matter of seconds, bringing hospitals and airports to a standstill.