March 4, 2012 7:03 PM

Stuxnet: Computer worm opens new era of warfare

McGurk: They opened up the box. They demonstrated the capability. They showed the ability and the desire to do so. And it's not something that can be put back.

Kroft: If somebody in the government had come to you and said, "Look, we're thinking about doing this. What do you think?" What would you have told them?

McGurk: I would have strongly cautioned them against it because of the unintended consequences of releasing such a code.

Kroft: Meaning that other people could use it against you?

McGurk: Yes.

Kroft: Or use their own version of the code?

McGurk: Something similar. Son of Stuxnet, if you will.

As a result what was once abstract theory has now become a distinct possibility.

Kroft: If you can do this to an uranium enrichment plant, why couldn't you do it to a nuclear power reactor in the United States or an electric company?

O Murchu: You could do that to those facilities. It's not easy. It's a difficult task, and that's why Stuxnet was so sophisticated, but it could be done.

Langner: You don't need many billions, you just need a couple of millions. And this would buy you a decent cyberattack, for example, against the U.S. power grid.

Kroft: If you were a terrorist group or a failed nation state and you had a couple of million dollars, where would you go to find the people that knew how to do this?

Langner: On the Internet.

Kroft: They're out there?

Langner: Sure.

Most of the nation's critical infrastructure is privately owned and extremely vulnerable to a highly sophisticated cyberweapon like Stuxnet.

Sen. Susan Collins: I can't think of another area in Homeland Security where the threat is greater and we've done less.

After several failures, Congress is once again trying to pass the nation's first cybersecurity law. And once again, there is fierce debate over whether the federal government should be allowed to require the owners of critical infrastructure to improve the security of their computer networks. Whatever the outcome no one can say the nation hasn't been warned.



© 2012 CBS Interactive Inc. All Rights Reserved.
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