In Arizona, a group calling itself the Minuteman Project has begun stationing volunteers along the Mexican border to track down immigrants. The Mexican government has described the volunteers as vigilantes. The group claims to have recruited about 1000 people including 30 pilots with aircraft. The project has been met by protests. Mexico’s National Human Rights Commission recently cited the Minuteman Project as a sign that anti-immigrant extremism is rising in the United States Meanwhile the American Civil Liberties Union has sent observers to keep tabs on the Minutemen volunteers to ensure they don’t take the law into their own hands. On Sunday the Minuteman Project claimed to have helped the official Border Patrol arrest 18 immigrants.