AP Investigation: US power grid vulnerable to foreign hacks (ap.org)
"Security researcher Brian Wallace was on the trail of hackers who had snatched a California university's housing files when he stumbled into a larger nightmare: Cyberattackers had opened a pathway into the networks running the United States power grid."
2013 Report Card for American Infrastructure (infrastructurereportcard.org)
"America relies on an aging electrical grid and pipeline distribution systems, some of which originated in the 1880s."
Preventing Blackouts: Building a Smarter Power Grid (scientificamerican.com)
"August 14, 2003, was a typical warm day in the Midwest. But shortly after 2:00 P.M. several power lines in northern Ohio, sagging under the high current they were carrying, brushed against some overgrown trees and shut down."