{"conversationCode":"487-020","tapeNumber":487,"conversationNumber":20,"identifier":"37-wht-conversation-487-020","startDateTime":"1971-04-23T18:51:00.000Z","endDateTime":"1971-04-23T19:52:00.000Z","startDate":"23-Apr-1971","startTime":"1:51 PM","endDate":"23-Apr-1971","endTime":"2:52 PM","dateCertainty":"certain","timeCertainty":"estimated","participants":"United States Secret Service agents;","description":"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.","locationCode":"OVAL","recordingDevice":"Oval Office","latitudeEstimated":38.8974,"longitudeEstimated":-77.0374,"chronCode":1,"chronRelease":"First Chronological Release","chronReleaseDate":"5-Oct-1999","aogpRelease":null,"aogpSegment":null,"lastModified":"2015-07-27T17:04:10.235Z","findingAid":"Conversation No. 487-20\n\nDate: April 23, 1971\nTime: Unknown between 1:51 pm and 2:52 pm\nLocation: Oval Office\n\nUnknown people (Secret Service agents?) met.\n\n     President's location\n           -Executive Office Building [EOB]\n\nThe conversation was cut off at an unknown time before 2:52 pm.","filename":["487-020.mp3"],"tapeStart":"03:51:53","tapeEnd":"03:54:44","participantsList":["United States Secret Service agents"],"prevCode":"487-019","nextCode":"487-021","transcript":[{"start":7.12,"end":30.35,"text":"It's already opening."},{"start":31.97,"end":33.09,"text":"It's already opening."}],"aiSummary":{"text":"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.","topics":["Secret Service","Oval Office security","facility access","White House operations"],"generatedAt":"2026-04-06T21:54:09.303Z"},"topicSlugs":["secret-service","oval-office-security","facility-access","white-house-operations"],"audioDurationSec":35,"audioFiles":[{"file":"487-020.mp3","bytes":850128,"durationSec":35.35,"bitrate":192409,"missing":false}],"audioIsShared":false,"audioProbedAt":"2026-09-18T02:19:48.989Z","audio":["https://nixon.nyc3.digitaloceanspaces.com/audio/487-020.mp3"],"url":"https://www.easynixon.org/tapes/487-020","nixonLibraryUrl":"https://www.nixonlibrary.gov/white-house-tapes/487/conversation-487-020","license":"Public domain (U.S. Government work). AI-generated fields (transcript, aiSummary) are provided as-is without warranty."}