Mexican drug cartel marketing strategies

Rodriquez said the local mafia – La Familia de Michoacan – blocked all street sales in the city a few years ago. The cartel said it was protecting the people from a scourge. Mexican law enforcement agents confirm that La Familia ordered a halt in local use, though they say it was a cynical ploy, a bit of propaganda.

"Now if you use it, they'll kill you," Rodriguez said. "Now it is just for the foreigners."

The longer article is here.