Why don't we hear of homegrown mafia in these countries? Several million Italians emigrated to these countries. Over a million (many Sicilians) went to Brazil and a couple million Italians emigrated to Argentina. Occasionally we read of fugitives or maybe a retired gangster but nothing major like in other countries. Is it assimilation or some other reason? Outside Europe, most of the activity we read about occurs in anglo saxon countries (US, Canada and Australia). Thoughts?

Back in the days,in Brazil,Tommaso Buscetta ran a large narcotic business

After he was arrested it fell apart, no?

i don't think so, in the 1880-1970 period the sicilians emigrated abroad were about 2.000.000, half of them in the states
the majority of people in south america have north and central italian descent, that's one reason because probably the mafia doesn't develop as a domestic crime group so much
but it's also true that the latin and african countries absorbed italians quickly compared to anglosaxon ones

You are correct about Brazil. According to wiki article, of the 1.2 million who emigrated there, only 44k are from Sicily. I thought it was a greater percentage. Overall, about half a million are from south Italy. Three presidents had Italian ancestry.

Yea but ud think some1would have went there and tried sumthn.Spain has problems with clans rite?

Yeah I've heard in the country side in south brazil they speak a Portuguese-Italian pigeon called Talian spoken by over a million people apparently