{"conversationCode":"491-006","tapeNumber":491,"conversationNumber":6,"identifier":"37-wht-conversation-491-006","startDateTime":"1971-04-28T16:16:00.000Z","endDateTime":"1971-04-28T16:35:00.000Z","startDate":"28-Apr-1971","startTime":"12:16 PM","endDate":"28-Apr-1971","endTime":"12:35 PM","dateCertainty":"certain","timeCertainty":"estimated","participants":"United States Secret Service agents;","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.","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. 491-6\n\nDate: April 28, 1971\nTime: Unknown between 12:16 pm and 12:35 pm\nLocation: Oval Office\n\nUnknown people [Secret Service Agents] entered.\n\n     Call to unknown person\n     President's location\n           -Tricia Nixon\n\nThe unknown persons left at an unknown time before 12:35 pm.","filename":["491-006.mp3"],"tapeStart":"00:53:14","tapeEnd":"00:57:27","participantsList":["United States Secret Service agents"],"prevCode":"491-005","nextCode":"491-007","transcript":[{"start":8.37,"end":34.22,"text":"Did you make a call on Angel?"},{"start":34.24,"end":35.19,"text":"Oh, he's just there, right?"},{"start":35.21,"end":35.75,"text":"I wonder if he found those."},{"start":35.77,"end":36.11,"text":"I don't think so."},{"start":36.13,"end":36.55,"text":"I don't think he did."},{"start":36.57,"end":36.99,"text":"I don't think he did."},{"start":37.01,"end":37.43,"text":"I don't think he did."},{"start":45.32,"end":60.33,"text":"three three"}],"aiSummary":{"text":"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.","topics":["Secret Service","security protocols","logistics","Presidential protection"],"generatedAt":"2026-04-06T22:02:57.289Z"},"topicSlugs":["secret-service","security-protocols","logistics","presidential-protection"],"audioDurationSec":60,"audioFiles":[{"file":"491-006.mp3","bytes":2416640,"durationSec":60.28,"bitrate":320699,"missing":false}],"audioIsShared":false,"audioProbedAt":"2026-09-18T02:19:48.989Z","transcriptGapSeconds":41,"transcriptGapShare":0.68,"transcriptQuality":"incomplete","audio":["https://nixon.nyc3.digitaloceanspaces.com/audio/491-006.mp3"],"url":"https://www.easynixon.org/tapes/491-006","nixonLibraryUrl":"https://www.nixonlibrary.gov/white-house-tapes/491/conversation-491-006","license":"Public domain (U.S. Government work). AI-generated fields (transcript, aiSummary) are provided as-is without warranty."}