◆ SpookStack

edy fo By the time that Mr. Kennedy had become Attorney General, the Bureau had learned from its experience with the Criminal Intelligence Program that A the single, most productive intelligence-gathering technique had been microphone surveillances of selected underworld figures. Many of these microphone surveillances used (c) QP. tronsuit the information obtained to an FBI monitoring center. Tthese{nnn (¢] SR s:: not, however, constitute a wire tap or (c} technical surveillance. these iP: c similar to "open lines" used by stockbrokers and music companies to transmit information and music from one location to another. It was normally possible for the FBI to make oral arrangements with the telephone company involved