Mr. Bouck. Oh, yes; very much so. They are, especially on trips very, very helpful.
Mr. Dulles. Foreign trips?
Mr. Bouck. Foreign trips, yes.
Representative Ford. How often do your people check to see procedures which are used by these various agencies for the determination of whether an individual is a dangerous person?
Mr. Bouck. We don't do that systematically. We frequently have such discussions but they are usually on a specific basis. Our representative will call up and say, "We just received this information. Would this be of interest to you."
In these borderline cases, we have much of that, and after discussion we decide whether it would or would not be. But outside of raising this question as it comes in connection with business between our agencies we do not make a practice of just simply querying them on this. We have not done that, as I recall.
Representative Ford. You don't lay down a particular criterion for Agency X, Y, or Z?
Mr. Bouck. No. We have the one general criterion that we have advocated for many years. I think it is quite well understood. We do not see signs that there were any lack of knowledge that this was our job and we wished this kind of information.
Mr. Dulles. Have you made any study going back in history of the various attempts that have been made, and successful and unsuccessful attempts, that have been made against Presidents or——
Mr. Bouck. Rulers.