Excerpt:
The FBI is so opposed to the NYPD's so-called Muslim spying program that top brass have barred agents from dealing with cops from the department's intelligence division, according to explosive claims in a new book.
The feds think the surveillance program is "a waste of money" and an affront to constitutional rights.
The anonymous claims come in an updated edition of "The Secrets of the FBI," due out next week by best-selling investigative author Ronald Kessler.