**Exclusive Details** Famed Hollywood attorney Bert Fields has been questioned by the FBI in connection with a grand jury probe of techniques and practices by Anthony 'Pelican' Pellicano, onetime private investigator to the stars. Now in the possession of the FBI are an astounding 2 billion double-spaced pages of text which was gleaned from Pellicano computer files. Included in those 2 billion pages, DRUDGE has learned, are alleged wiretap transcripts. MORE Last month, Pellicano pleaded guilty to illegally possessing C-4 plastic explosives and two modified hand grenades. According to Thursday runs of DAILY VARIETY, Fields, who has used Pellicano on...