Mr. Rankin. You told us about your efforts to try to determine whether subversive groups or groups that might have an interest in making trouble for a trip of the President were going to try to do anything. Would you tell us what you did about that in more detail?
Mr. Curry. I gave you a copy of this, and I would like to read it for the record, if you would like me to.
Mr. Rankin. We will offer that.
Mr. Curry. All right.
This is a copy of a report submitted to me by Lieutenant Jack Revill, criminal intelligence section of the special service bureau.
Mr. Rankin. I will hand you Exhibit No. 710 and ask you if that isn't a copy of what you are referring to.
Mr. Curry. Yes; it is.
Mr. Rankin. You won't have to read that. Chief, if you will just describe in a general way what was done that you know about and then I will offer that to show what it proves.
Mr. Curry. In essence, this report says prior to the announcement of the President's visit, there were rumors he would visit Dallas and because of these rumors the intelligence section increased its efforts in attempting to get data concerning not only extremists and subversive groups.
Mr. Rankin. How do they do that?