"The United States and Mexico have a special relationship as neighbors and partners under the North American Free Trade Agreement (NAFTA). The friendly relationship has been strengthened by President Bush's meetings with President Fox. This report, covering trade, migration/border, drug trafficking, and political issues, will be updated on a regular basis, with action on migration issues expected."
CRS Report for Congress, RL32724
United States Department of State: http://fpc.state.gov/fpc/c4763.htm