Well this should lend a bit of reality to black hat activities.

"A group of hackers couldn't single-handedly bring down the United States' national data infrastructure, but a terrorist team would be able to do significant localized damage to U.S. systems, according to a recent war games simulation.
The United States Naval War College worked with Gartner Research to conduct a "digital Pearl Harbor" simulation last month, testing the U.S. response to attacks on telecommunications, the Internet, financial systems and the power grid. The analysts found that it would be possible to inflict some serious damage to the nation's data and physical infrastructure systems, but it would require a syndicate with significant resources, including $200 million, country-level intelligence and five years of preparation time."

http://news.com.com/2100-1017-949605.html