LAST NOVEMBER we told you here about a book titled Ultimate Sacrifice, which purported to offer new details about the death of President John F. Kennedy. It's too complicated to go into all the revelations in this massive work by Lamar Waldron, but let it suffice to say that the San Francisco Chronicle recently ran a rave review written by Ronald Goldfarb. He was the Mafia prosecutor under Attorney General Bobby Kennedy, and this is the first time anyone closely associated with either brother has offered praise for a JFK assassination book. Now we can tell you that NBC has...