Table of Contents 1. Introduction; Gary Prevost and Harry Vanden 2. From the US Department of State, USAID, and Washington-based Think Tanks: The Search for Ungoverned Spaces in South America; Luiza R. Mateo and Aline P. dos Santos 3. United State and the Security Agenda in the Caribbean Basin After 9/11; Carlos Oliva Campos 4. The Militarization of US-Mexican Relations: Ungoverned Spaces and Failed State?; Jaime Precaido Coronado 5. Maras, Contragoverned Spaces and Sovereignty; Harry E. Vanden 6. Central America: Ungoverned Spaces and the National Security Policy of the United States; Ignacio Medina Núñez 7. Security Issues on the Mexico-Guatemala Border and their Relationship to the New National Security Policy of the United States; Daniel Villafuerte 8. Old Wine in New Wineskins: Incorporating the 'Ungoverned Spaces' Concept into Plan Colombia; John C. Dugas 9. United States Response to the Haitian Earthquake in the Context of the Concepts of Failed State and Ungoverned Spaces; Gary Prevost 10. Conclusion; Gary Prevost, Carlos Oliva, Luis Fernando Ayerbe and Harry Vanden