Growing AOR

Army Gen. Keith Alexander, head of U.S. Cyber Command, made a claim today before the House Armed Services Committee that few of his combatant command counterparts could match: His "area of responsibility" has increased 400 percent over the last decade. In prepared remarks, he said:

In 2009 there were more than 1.8 billion Internet users, and 4.6 billion cellular subscribers; together they sent roughly 90 trillion e-mails. Cyberspace in that sense is "larger" than ever. And yet, at the same time, bandwidth is broader and search engines are more powerful than ever, and so in a different sense cyberspace has become "smaller," with more and more people able to interact with each other in real-time.