He has been called the greatest living art forger in the world. Arrested as an art forger in 1989, Southern California resident Tony Tetro became in 1991 the only living American artist slapped with a court order mandating that he clearly sign his name to the back of every work he creates, so they can’ be passed off as originals and sold for outrageous sums of money to unwary art collectors. With a new book about his life recently published, and a documentary in the works, Tetro and his co-author Giampiero Ambrosi discuss the life of an art forger.