Investigatory Powers Bill

My Lords, given what has been said, I have little to add. I was born in Germany after the war, when it was so easy to define national security. It was about people coming over our border. Today, it is about our streets and about keeping people safe at home and abroad. I look forward to the noble Earl’s response. I do not think it is wise to try to define national security in the Bill, not simply because of the complications but because the definition changes. I know that it is a long time since I was born, but even over the next five years the definition will change again. We look forward to hearing the Government’s comments.