while its true that afgan heroin is of very high quality, little of it makes its way to the us outside from small amounts on the east coast and chicago/detroit. the majority of the afgan heroin is shipped to the ever expanding russian/european markets. in the us the majority of heroin in the northeast is south american(columbian) whiloe on the west coast its mainly tar from mexico with a small amount of southeast asian powder from vietnam/burma/thialand. this explains why once the italians fell out of the heroin importation buisness in the late 80's, it was hard to get back in as other ethnic gangs swiftly moved in and were much more prone to violence.