A declassified 1979 report from the United States Embassy in Bogotá, published in 2007 by the National Security Archive, mentioned that there was a plan for the BINCI to form a paramilitary operation under the guise of the Alianza Americana Anticomunista (AAA).
The report describes the goal of the formation of the AAA as "to create the impression that the American Anti-communist Alliance has established itself in Colombia and is preparing to take violent action against local communists."
[1][3] On August 30, 1987, Nydia Erika Bautista de Arellana was kidnapped by a group of undercover operatives identified as part of Brigade XX.
[4] Nydia Erika was 30 years old and had previously been detained due to her student activism and membership in the Movimiento 19 de Abril (English: 19th of April Movement) (M-19) guerrilla group.
On July 9, 1995, Colombia's Procurator-Delegate for Human Rights, Hernando Valencia Villa, announced the conclusions of a disciplinary investigation into the 1987 "disappearance", torture and murder of Nydia Erika Bautista and called for Brigadier General Álvaro Hernán Velandia Hurtado and an army sergeant to be expelled from the armed forces.