<P> Crime is among the most urgent concerns facing Mexico, as Mexican drug trafficking rings play a major role in the flow of cocaine, heroin, and marijuana transiting between Latin America and the United States . Drug trafficking has contributed to corruption, which has had a deleterious effect on Mexico's Federal Representative Republic . Drug trafficking and organized crime have also been a major source of violent crime in Mexico . </P> <P> Mexico has experienced increasingly high crime rates, especially in major urban centers . The country's great economic polarization has stimulated criminal activity in the lower socioeconomic strata, which include the majority of the country's population . Crime continues at high levels, and is repeatedly marked by violence, especially in the cities of Tijuana and Ciudad Juárez, and the states of Baja California, Durango, Sinaloa, Guerrero, Chihuahua, Michoacán, Tamaulipas, and Nuevo León . Other metropolitan areas have lower, yet still serious, levels of crime . Low apprehension and conviction rates contribute to the high crime rate . </P> <P> Before the drug war in Mexico, there were roughly 300 murders in the border city of Ciudad Juarez in 2007 . In 2010, state officials reported a peak of 3,622 homicides in the city . With a rate of 272 murders per 100,000 residents, Ciudad Juarez alone had the highest murder rate in the world, although the rate has steadily decreased since then to reach only 300 murders in 2015 . </P> <P> Puerto Rico has become a major transshipment point for illegal drugs that are smuggled from source countries like Colombia and Peru into the U.S. mainland . Most of it is transported to and through the island from drug trafficking organizations in the Dominican Republic, Colombia, Florida, and criminal organizations in Puerto Rico . One of the most common ways drugs are smuggled into the island is through commercial and private maritime vessels, and container terminals such as the Port of San Juan . It is the busiest port in the Caribbean and the second busiest in Latin America . </P>

Which south american country is the most dangerous