{"conversationCode":"487-023","tapeNumber":487,"conversationNumber":23,"identifier":"37-wht-conversation-487-023","startDateTime":"1971-04-23T21:56:00.000Z","endDateTime":"1971-04-23T21:59:00.000Z","startDate":"23-Apr-1971","startTime":"4:56 PM","endDate":"23-Apr-1971","endTime":"4:59 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 4:56 pm and 4:59 pm. The Oval Office taping system captured this recording, which is known as Conversation 487-023 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. 487-23\n\nDate: April 23, 1971\nTime: Unknown between 4:56 pm and 4:59 pm\nLocation: Oval Office\n\nUnknown people (Secret Service agents) met.\n\n     President’s schedule\n          -Helicopter trip to Virginia Beach\n\n     [Helicopter noise]\n\nThe conversation was cut off at an unknown time before 4:59 pm.","filename":["487-023.mp3"],"tapeStart":"05:47:18","tapeEnd":"05:48:02","participantsList":["United States Secret Service agents"],"prevCode":"487-022","nextCode":"488-001","transcript":[{"start":0.59,"end":3.2,"text":"Thank you."},{"start":5.27,"end":5.47,"text":"Thank you."}],"aiSummary":{"text":"President Nixon met with United States Secret Service agents to discuss logistics regarding his upcoming helicopter trip to Virginia Beach. The briefing focused on travel arrangements and scheduling requirements for the flight. The short discussion was interrupted by heavy helicopter noise, and no further significant policy decisions were recorded.","topics":["Presidential travel","Secret Service","Logistics","Virginia Beach","Helicopter transportation"],"generatedAt":"2026-04-06T21:54:26.600Z"},"topicSlugs":["presidential-travel","secret-service","logistics","virginia-beach","helicopter-transportation"],"audioDurationSec":5,"audioFiles":[{"file":"487-023.mp3","bytes":131656,"durationSec":5.42,"bitrate":194184,"missing":false}],"audioIsShared":false,"audioProbedAt":"2026-09-18T02:19:48.989Z","audio":["https://nixon.nyc3.digitaloceanspaces.com/audio/487-023.mp3"],"url":"https://www.easynixon.org/tapes/487-023","nixonLibraryUrl":"https://www.nixonlibrary.gov/white-house-tapes/487/conversation-487-023","license":"Public domain (U.S. Government work). AI-generated fields (transcript, aiSummary) are provided as-is without warranty."}