Nixon White House Tapes › Tape 487 › Conversation 487-020

United States Secret Service agents on Secret Service and Oval Office security

Friday, April 23, 1971 · 1:51 PM–2:52 PM ET · Oval Office · 35 sec

ParticipantsUnited States Secret Service agentsConversation487-020 on Tape 487 (tape position 03:51:53–03:54:44)StartFriday, April 23, 1971 at 1:51 PMEndFriday, April 23, 1971 at 2:52 PMRecording deviceOval OfficeSourceNixon Library record for 487-020 ↗

Secret Service agents gathered in the Oval Office to address a mechanical or logistical issue involving a doorway or security entrance that was already in the process of opening. The brief, fragmented exchange suggests a focus on operational access or equipment maintenance within the President's workspace. No further substantive policy matters were recorded before the audio feed was terminated.

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On April 23, 1971, United States Secret Service agents met in the Oval Office of the White House at an unknown time between 1:51 pm and 2:52 pm. The Oval Office taping system captured this recording, which is known as Conversation 487-020 of the White House Tapes.

Conversation No. 487-20

Date: April 23, 1971
Time: Unknown between 1:51 pm and 2:52 pm
Location: Oval Office

Unknown people (Secret Service agents?) met.

     President's location
           -Executive Office Building [EOB]

The conversation was cut off at an unknown time before 2:52 pm.
  • 002-034 1:04 PM · 7 sec — President Richard M. Nixon and the White House operator talked on the telephone at an unknown time between 1:04 pm and 1:11 pm.
  • 002-035 1:11 PM · 14 sec — President Richard M. Nixon and the White House operator talked on the telephone at 1:11 pm.
  • 487-017 1:11 PM · 14 sec — President Richard M. Nixon and the White House operator met in the Oval Office of the White House at 1:11 pm.
  • 487-018 1:11 PM · 3 sec — President Richard M. Nixon and Manolo Sanchez met in the Oval Office of the White House at an unknown time between 1:11 pm and 1:17 pm.
  • 002-036 1:14 PM · 17 sec — President Richard M. Nixon and the White House operator talked on the telephone at an unknown time between 1:14 pm and 1:32 pm.
  • 487-019 1:17 PM · 33 min — President Richard M. Nixon, H. R. ("Bob") Haldeman, White House operator, and Chief Herbert R. Rainwater met in the Oval Office of the White House from 1:17 pm to 1:51 pm.
  • 002-037 1:32 PM · 5 min — President Richard M. Nixon and Chief Herbert R. Rainwater talked on the telephone from 1:32 pm to 1:37 pm.
  • 002-144 1:37 PM · 6 sec — President Richard M. Nixon and the White House operator talked on the telephone on an unknown date, sometime between 1:37 pm on April 23, 1971 and 6:53 pm on April 26, 1971.

Conversation 487-020, April 23, 1971. White House Tapes, Richard Nixon Presidential Library and Museum, National Archives. Audio and AI transcript via Easy Nixon, https://www.easynixon.org/tapes/487-020 (accessed October 10, 2026).