According to Grace Livingstone , more Colombian School of the Americas ( SOA ) graduates have been implicated in human rights abuses than SOA graduates from any other country . All of the commanders of the brigades highlighted in the 2001 Human Rights Watch report were graduates of the SOA , including the III brigade in Valle del Cauca , where the 2001 Alto Naya Massacre occurred . US-trained officers have been accused of being directly or indirectly involved in many atrocities during the 1990s , including the Massacre of Trujillo and the 1997 Mapiripán Massacre
Massacre of Trujillo
Massacre of Trujillo
Plan Colombia