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Disputes - international: |
prolonged drought, population growth, and outmoded practices and
infrastructure in the border region have strained water-sharing
arrangements with the US; nationals from Central America slip into
Mexico seeking work or transit into the US; undocumented Mexican
nationals continue to enter the United States
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Illicit drugs: |
illicit cultivation of opium poppy (cultivation in 2001 - 4,400
hectares; potential heroin production - 7 metric tons) and of
cannabis (in 2001 - 4,100 hectares); government eradication
efforts have been key in keeping illicit crop levels low; major
supplier of heroin and largest foreign supplier of marijuana and
methamphetamine to the US market; continues as the primary
transshipment country for US-bound cocaine from South America,
accounting for about 70 percent of estimated annual cocaine
movement to the US; major drug syndicates control majority of
drug trafficking throughout the country; producer and
distributor of ecstasy; significant money-laundering center
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