Operation Casablanca (1998)
Undercover DEA agents posed as corrupt bankers and money launderers, infiltrating Mexican banks that moved drug cash through the U.S. financial system. The sting resulted in 110 arrests and penalties against 12 Mexican banks, some of which had processed billions in laundered funds.
Mexican officials protested the arrests, producing a diplomatic row and policy changes.
It demonstrated how deeply cartel money ran through legitimate finance and marked an early federal effort to follow the money rather than just seize drugs.
Casablanca exposed banks as laundering conduits; the La Posada case shows the same phenomenon now operating through smaller, family-owned remittance businesses.
