Mr. HUBERT. Now, you have made a statement, I think, to the FBI, have you not, sir? Mr. STEVENSON. Yes; I was interviewed by the FBI. Mr. HUBERT. I will hand you a document that I am going to mark now for identification as follows: Dallas, Tex., March 23, 1964, an Exhibit 5051, Deposition of Chief M. W. Stevenson. I am signing my name, and I would like you to read it, sir. Mr. STEVENSON. (Reads.) Mr. HUBERT. Now, Mr. Stevenson, you are signing it. Do I take it by that, that that statement is correct, so far as you know? At least that there are no errors in it? Mr. STEVENSON. As far as I can see, there are no errors. Only one thing on this, unless I missed it right here, this does not say anything of the change of plan. Mr. HUBERT. No? Mr. STEVENSON. It sure doesn't. Mr. HUBERT. Well, it just speaks for itself. But apparently you called to our attention an omission from that statement which has been covered by a part of this deposition, is that correct? Mr. STEVENSON. This was taken on the 25th. I guess that is right. Isn't that the date here? Mr. HUBERT. Yes; the 25th is correct. Mr. STEVENSON. I don't understand why that part was omitted, but I was interviewed, and there is nothing in here, as far as I am concerned, that is wrong, to my knowledge, with the exception of that omission of the change in method, of transfer. Mr. HUBERT. There may be other things also in your deposition that do not appear in that document which we have marked as Exhibit 5051. Now I show you another document which I have marked "Dallas, Tex., March 23, 1964, Exhibit 5052, Deposition of M. W. Stevenson," and I have signed it with my own name. It is a part of the Commission Document 81-A, Page 95-A, and ask you, sir, if that is a correct statement of your interview with Captain Sawyer? Mr. STEVENSON. Yes, sir; it is. I might add on this one, this was to find out about our security, the reason this one was put out, and that is the reason they didn't go any further. You want me to sign this? Mr. HUBERT. Yes. As I understand you, that is correct, so far as it goes? Mr. STEVENSON. That's right. Mr. HUBERT. Would you care to state for the record, Chief Stevenson, what, in your opinion, was the cause of the breakdown of security which resulted in the death of Oswald? Mr. STEVENSON. Mr. Hubert, I don't know whether I can tell you the cause or not, but there is no doubt we had a breakdown. And if our investigation is right, it was at the Main Street ramp into the basement through which Ruby claimed that he walked down that ramp while this officer had his back turned. And our investigation showed that he did leave the Western Union Office some 4 or 4-1/2 minutes prior to the shooting. Our breakdown, although this is my opinion, it was unintentional on the part of Officer Vaughn, in my opinion, he did come down that ramp. Mr. HUBERT. Is there anything else you would like to say, sir, concerning any part of this matter whatsoever?