evidence: - ^ a b "Acquisition Process of Insular Areas". United States Government, Department of the Interior. Archived from the original on 2012-04-14. Retrieved 2008-01-13. lists Serranilla Bank as an insular area under U.S. sovereignty. - ^ (in Spanish) Treaty of exchange between Colombia and the United States, 1972 Archived 2011-05-24 at the Wayback Machine - ^ "Application of the U.S. Constitution" (PDF). United States Government, General Accounting Office. November 1997. Archived from the original (PDF) on 2008-02-16. Retrieved 2008-01-13. Page 39 states that U.S. sovereignty over Serranilla Bank is disputed. "Currently, the United States conducts maritime law enforcement operations in and around Serranilla Bank and Bajo Nuevo consistent with U.S. sovereignty claims." This is the only archived document from this source that mentions Serranilla Bank as an insular area.