James J. "Whitey" Bulger appears in a variety of FBI file photos spanning years from 1983 to 1994. The FBI has disclosed that Bulger has helped its agents for nearly 20 years, and that secret alliance, which has raised issues of entrapment, might undo the long effort to bring down the New England mob. Whitey, long known as a leader and enforcer in the local mob, is brother of the former long-time Mass. state senate president Billy Bulger. (AP Photo/FBI, File)