Yes. I'm firmly of the view that the committee ought to have powers of compulsion. If there are particular pieces of information that you want to get from any one agency, hopefully they'll co-operate and give it to you, but on the off chance that they don't, for some reason, or if you feel that they are not compliant, you ought to be able to compel them. For example, there may be intelligence analysts that you want to ask questions of in any particular circumstance. You ought to be free to do that. It seems to me that there ought to be powers of compulsion.
In terms of civilians, non-government people, they of course could not appear in a secret or a closed process, but similarly, I see no reason in principle, if this committee is going to discharge its responsibilities, why it would not have that power.