National Security Bill

My Lords, may I ask a question of clarification? I understand much more clearly what the noble Lord is saying: governing political parties are in effect acting as intermediaries for the state. However, certainly in the international relations which I have been engaged in over the last 40 years, many think tanks in other states also operate as intermediaries in that respect. In particular the Washington think tanks, which are very close to the Government, act as intermediaries, but foreign-funded ones in other democratic and non-democratic capitals often also do so. Should that not be included in the Bill for the same rationale that he has just given us on dominant political parties?