Mobsters giving interviews - LE reaction

What does the FBI and other law enforcement agencies think of mobsters who do TV shows, movies, interviews, write books, etc.? What is their reaction whenever the media glorifies the LCN (Sopranos, the Godfather, video games, etc.)?

This is in light of Toto Riina's son giving an interview on his life in the Sicilian Mafia.

The Feds try to use what ever information they can against these guys, so they are probably happy when they are talking to the media. It seems like many in LE take it personal when some wise guy is glorified in the media. I forget the prosecutors name that was trying Merlino for his parole violation but he was not happy when Merlino was cracking jokes outside the court house during and after the hearing.