THE BCI X BCI HAS RECEIVED A LETTER FROM LEON DAVIDSON X LEON DAVIDSON WHITE PLAINS NEW YORK REQUESTING INFORMATION ON THE RECORDING YOU RECEIVED FROM DAVIDSON REFERS TO SOME CORRESPONDENCE HE HAD WITH YOU AND THEN GOES ON TO ASK FOR AGENCY COOPERATION IN LEARNING WHAT THE CODE MESSAGE REVEALED. HE INDICATES THAT HE HAS RECENTLY TEST- IFIED BEFORE THE HOUSE SUBCOMMITTEE ON GOVT INFORMATION AND SAYS THAT HIS TESTIMONY WILL DISPLAY HIS INTEREST IN THIS SUBJECT.