The Center for Strategic and International Studies in Washington DC has just published and interesting and timely report "Securing Cyberspace for the 44th Presidency".
There are some good arguments in this paper, though I feel it does need a clearer definition of the problem space. Threats such as espionage, war and sabotage are not confined to either physical or electronic media. And they don't necessarily share a common solution space.
Securing cyberspace is just one component of the broader challenge of safeguarding physical and intellectual assets in the information age. The focus of information security needs to extend beyond the supporting media.
