January 20 in history, these intelligence were sent to the US president

情报历史上的1月20日，这些情报被递交给时任美国总统

Intelligence History on 1962 January 20
Intelligence History on 1964 January 20
Intelligence History on 1966 January 20
Intelligence History on 1967 January 20
Intelligence History on 1968 January 20
Intelligence History on 1969 January 20
Intelligence History on 1970 January 20
Intelligence History on 1971 January 20
Intelligence History on 1972 January 20
Intelligence History on 1973 January 20
Intelligence History on 1975 January 20
Intelligence History on 1976 January 20
Intelligence History on 1977 January 20