From the moment that Japan attacked Pearl Harbor, America learned that it is not an impenetrable fortress protected by thousands of miles of ocean, and on September 11, we were tragically reminded of that fact. Likewise, there is a new kind of threat to the United States that knows no territorial boundaries, but this one travels neither by land, by sea or by air. It’s the threat to America’s cyber security, and today Congress has the opportunity to do something about it.