“… o your agency: Kand its contents are not to be distributed outside your agency. NW-65994-Docld:329897-31-Page-6- 3896 1 : 0-302-Rev. 4.5-6. FEDERAL BUREAU OF INVESTIGATION Date June 20, 1968 WALTER LEON SPAIN, #3 Glen Iris Parkway, Birmingham, Alabama, furnished the following: In th e Spring of 1967, SP AI N's …”