Investigatory Powers Bill

I am listening very carefully to my right hon. Gentleman and I agree entirely with everything he has said. Before he finishes, will he say a little more about the Committee’s recommendation on the definition of national security? The Committee raised that as a concern and the term has been used to cover a multitude of activities. Does he agree that it would be better for the Government to provide a clear definition of national security in the Bill and to drop the justification of economic wellbeing for the more intrusive warrants?