I was not aware of that. Certainly hearing witnesses I don't think has been restricted from what you've said; providing documents is another issue.
I'm surprised that's the case, but certainly the House could demand production of the documents and then the committee could look at them to their heart's content. It's a matter of dealing with that in the House, in part, because the House is able to make these demands. The committee could recommend to the House that the House demand production of the documents, I suspect, and then if the committee reports are concurred in....