Are we prepared to face a powerful cyberattack against US networks?

Defense Secretary Leon Panetta thinks we aren't. He's warned of a "cyber-Pearl Harbor" in a recent New York Times piece.

Cyberattacks are nothing new. Large datacenters are attacked all the time from overseas hackers, militant groups, and aggressive nations in search of information. PlanetMagpie's own datacenter has even seen attacks (though our security rebuffed them).

Mr. Panetta is warning about a large-scale cyberattack, which could target key points in America's digital infrastructure. Power plants, gas pipelines, even transportation networks...all could be at risk without additional safeguards.

Panetta is calling for legislative versions of these safeguards, in order to fully prepare US networks. Read his full argument, and more about the risks a cyberattack poses, at:
Panetta Warns of Dire Threat of Cyberattack on U.S. - The New York Times