How many times do I have to say this?
THE FACT THAT THE FBI (OR LOCAL POLICE) IN DETROIT DON'T ALLOCATE MUCH TIME AND RESOURCES TO THE LCN THERE SHOWS IT'S NOT A BIG PRIORITY IN THE FIRST PLACE! IF IT WAS AS STRONG AND ACTIVE AS SOME ALLEGE, IT WOULD BE A HIGHER PRIORITY FOR THE FEDS AND THERE WOULD BE MORE CASES AS A RESULT!LAW ENFORCEMENT AGENCIES OBVIOUSLY DEDICATE ENOUGH RESOURCES TO BRING ABOUT ONGOING CASES, NOT ONLY IN NEW YORK, BUT ALSO IN NEW ENGLAND, PHILADELPHIA, AND CHICAGO. BUT DETROIT IS THE ONE AREA OF THE COUNTRY WHERE THE FEDS IGNORE THE MOB OR ARE NOT ABLE TO BRING ONGOING CASES? 
Again you miss the point. It is not necessarily indicative of less mafia activity only that they value the prosecution of street gangs and 1% motorcycle clubs as they are a bigger threat to the public. Or did you ask them and they told you they put mafia prosecution over that of street gangs and other OC groups?
You act as though it is a stretch to think 1 out of 5 FBI branches places more emphasis on other criminal elements than the mafia. I think most would agree that street gangs are a bigger threat to public safety so perhaps 20% of FBI branches are starting to realize going after gang bangers who shoot out in public serves the public interest more so than going after old men who take bets.
