4/4/2017 New York Times
Each year, Mexican drug cartels rake in billions of dollars in profits from the sale of heroin, methamphetamines and other drugs in the United States. The money has to make its way south somehow.
Though the cartels sometimes hire legitimate companies to buy goods like silk and ink cartridges and export them to Mexico, where they are sold for pesos, a more common method is to simply pay someone to drive the cash over the border.
President Trump has talked frequently about “bad hombres” streaming in from Mexico. But it is the flow of money going from north to south — a product of Americans’ voracious appetite for illicit drugs — that officials say is an equal part of the problem.