John Thune actually said...

I think we have to remember that we're under constant attack. Our critical infrastructure and the Internet backbone of our economy remain ex...

And there are multiple government agencies that deal with, and have some role in preventing, cyber attacks.

And there was a recent GAO report that states that cyber attacks could cost our economy $100 billion annually in the near future.

I appreciate the doubts that have been expressed by some about the concept of operations in an actual conflict.