Nixon White House Tapes › Tape 491 › Conversation 491-006

United States Secret Service agents on Secret Service and security protocols

Wednesday, April 28, 1971 · 12:16 PM–12:35 PM ET · Oval Office · 1 min

ParticipantsUnited States Secret Service agentsConversation491-006 on Tape 491 (tape position 00:53:14–00:57:27)StartWednesday, April 28, 1971 at 12:16 PMEndWednesday, April 28, 1971 at 12:35 PMRecording deviceOval OfficeSourceNixon Library record for 491-006 ↗

AI Summary

Secret Service agents met in the Oval Office to verify the status of a specific individual referred to as 'Angel' and coordinate on his current location. The agents discussed whether this individual had successfully retrieved certain items, ultimately concluding he likely had not. This brief operational check appears to focus on internal security or logistical oversight regarding presidential security details.

Audio

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Transcript (AI-generated)

This transcript is incomplete. The transcription skipped stretches of speech — roughly 1 minute of this recording (about 68% of it) is represented by only a few words. Listen to the audio rather than relying on the text below; a corrected transcript is queued.

This transcript was generated automatically by AI (WhisperX) and has not been reviewed for accuracy. Names and numbers are often wrong; speakers are not identified. Do not cite it as authoritative — verify against the audio and the finding aid.

Download transcript (.txt) · JSON data

Did you make a call on Angel?

Oh, he's just there, right?

I wonder if he found those.

I don't think so.

I don't think he did.

three three

NARA Description

On April 28, 1971, United States Secret Service agents met in the Oval Office of the White House at an unknown time between 12:16 pm and 12:35 pm. The Oval Office taping system captured this recording, which is known as Conversation 491-006 of the White House Tapes.

Nixon Library Finding Aid

Conversation No. 491-6

Date: April 28, 1971
Time: Unknown between 12:16 pm and 12:35 pm
Location: Oval Office

Unknown people [Secret Service Agents] entered.

     Call to unknown person
     President's location
           -Tricia Nixon

The unknown persons left at an unknown time before 12:35 pm.

Also recorded on April 28, 1971

491-002 11:37 AM · 31 sec — President Richard M. Nixon and Stephen B. Bull met in the Oval Office of the White House at an unknown time between 11:37 am and 11:42 am.
491-003 11:42 AM · 16 min — President Richard M. Nixon, Melvin R. Laird, James E. Johnson, James D. ("Don") Hughes, John H. Chafee, Frederic V. Malek, Ronald L. Ziegler, and unknown person(s) met in the Oval Office of the White House from 11:42 am to 11:59 am.
491-004 11:59 AM · 11 sec — President Richard M. Nixon and Stephen B. Bull met in the Oval Office of the White House at 11:59 am.
491-005 12:00 PM · 15 min — President Richard M. Nixon, Ronald L. Ziegler, Tricia Nixon Cox, and Howell Conant met in the Oval Office of the White House from 12:00 pm to 12:16 pm.
491-007 12:16 PM · 17 sec — Alexander P. Butterfield and unknown person(s) met in the Oval Office of the White House at an unknown time between 12:16 pm and 12:35 pm.
491-008 12:16 PM · 10 sec — United States Secret Service agents met in the Oval Office of the White House at an unknown time between 12:16 pm and 12:35 pm.
491-009 12:37 PM · 6 min — President Richard M. Nixon, Tricia Nixon Cox, Ann Coffin, and Howell Conant met in the Oval Office of the White House from 12:37 pm to 12:39 pm.
491-010 12:39 PM · 29 min — President Richard M. Nixon, Gerhardt Schroeder, Henry A. Kissinger, Helmut ("Hal") Sonnenfeldt, and Stephen B. Bull met in the Oval Office of the White House from 12:39 pm to 1:06 pm.

All 31 conversations from April 28, 1971 →

Cite this conversation

Conversation 491-006, April 28, 1971. White House Tapes, Richard Nixon Presidential Library and Museum, National Archives. Audio and AI transcript via Easy Nixon, https://www.easynixon.org/tapes/491-006 (accessed October 12, 2026).