What I wanted to say is that the american mob in the criminal landscape are no more dangerous as was in the 1980s because are confinated in NY and in few east coast cities.
Italy wasn't like the Mexico because even in the years of most power of the mafia/camorra/ndrangheta there was people that fought and died for the justice and the fact that only in 1986 there was a maxi trial doesn't means that before there wasn't investigation against the mafias.

The Mexico is another thing:a mexican said "The problem of Mexico is that confine with the biggest junkie of the world".

The Partido Revolucionario Institucional ruled on Mexico like a de facto dictorship until 2000,the biggest bussiness men have ties with the cartels,so the police and the army,they have infiltrated and corrupted the Mexican administrative machine so much that anyone who tries to do something is isolated or killed, The Mexican State has declared war on the cartels and is also losing, even at the time of Totò Riina part of the state rebelled against corrupt politicians.
Italy is the purgatory while Mexico is the hell.