Drug cartels are a major concern in Mexico. Mexico's drug war, ongoing since 2006, has left over 120,000 dead and perhaps another 37,000 missing. The Mexican drug cartels have as many as 100,000 members. Mexico's National Geography and Statistics Institute estimated that in 2014, one-fifth of Mexicans were victims of some sort of crime. The U.S. Department of State warns its citizens to exercise increased caution when traveling in Mexico, issuing travel advisories on its website.