in response to your questions, off the top of my head now,

How vulnerable is the Internet to wide-spread technical failures?

It's not very vulnerable.

Is the Internet industry doing enough to ensure the resilience and stability of the Internet or is regulatory intervention unavoidable?

Oh they're doing nothing of the sort.

Is the EU Commission's concern about cyber-attacks justified and should the military be more involved in protecting the Internet?

Sure there'll be cyber-attacks. The military should be involved.

Are Government operated Computer Emergency Response Teams an appropriate mechanism for dealing with Internet incidents?

At least minor stuff like criminal DDoS.

Is it sensible to develop European-centric approaches to response infrastructure or should there be more emphasis on a worldwide approach?

Oh we need a Euro-centric approach, equipment and know-how, *in addition* to a worldwide approach.

yours