An important observation
It is quite important to note that Dinkin's and Christenses's intercepts were made about three weeks before the assassination. This was also the time that Ruth Paine found Oswald the job at the School Book Depository. Ruth Paine had CIA connections. She was Oswald's "babysitter" . A well to do middleclass housewife with children of her own she took a great deal of trouble over Oswald and his Russian born wife Marina and their two daughters, having them move into her house in Irving near Dallas. Ruth Paine and her husband Michael did a great deal to frame Oswald in Warren Commission hearings.
It is obvious the plot was finalized in late October/early November 1963. Sam Bloom provided vehicles for the motorcade. Rabbi Silverman, Jack Ruby, Abe Zapruder , the folk at the Jewish owned Daltex building, Honest Joe Goldstein and others must have very busy in those final three weeks. One of them had the motorcade route with it's dangerous dog leg turn at the TSBD published in the local papers to give Oswald a reason to bring his rifle to work on the morning of the 22nd. (There is no real evidence connecting Oswald to the defective Mannlicher Carcano, and he denied owning any rifle during his interrogation).