Archive (FBI)

US: FBI Alexandria teletype to FBI Director (“Possible threat to assassinate Prime Minister Margaret Thatcher of Great Britain”) [conversation overheard by a “source of proven reliability”] [declassified 2014]

Document type: Declassified documents
Source: FBI records vault
Editorial comments: Extract from file giving all material relevant to the 1981 incident, listed by date of earliest item. The full file, including other incidents, can be read here. Original telex copied to US Secret Service (responsible for MT’s immediate protection) and the US Secretary of State. Whether MT will ever have known of the threat is entirely unclear.
Importance ranking: Major
Word count: 75pp
Themes: Foreign policy (USA), Northern Ireland, Security services & intelligence, Terrorism