Puerto Rico is drowning in debt. It is now in the process of leasing its Luis Munoz Marin International Airport to a Mexican firm Aeropuertos del Sureste (Aerostar). The airport (LMM) is the largest in the Caribbean, and it could become an international gateway to Central and South American cities. The lease deal lasts 40 years. However, studying the financial terms of the deal, it is not clear that Puerto Rico will really benefit much financially from privatizing the airport.