"...there are increasing calls for creating a more permissive environment for active network defense that allows companies not only to stabilize a situation but to take further steps, including actively retrieving stolen information, altering it within the intruder’s networks, or even destroying the information within an unauthorized network." this is actually way worse than the headline indicates. the crazy bastards…
A problem now which is more frightening (I can secure my network from the media companies, not worried about that one bit) is the remarkable number of companies with known security problem that won't and don't disclose it. Going on the offensive should be illegal unless they can disclose damages which justify it and then their customers can sue.
I don't see this happening in a healthy world, defense will get much much better much more quickly if it was to be legal though, ultimately it would involve violence though.