U.S. attention to terrorism in Latin America intensified in the aftermath of the September 2001 terrorist attacks on New York and Washington, with an increase in bilateral and regional cooperation. Over the past several years, policymakers have been concerned about Iran's increasing activities in Latin America, particularly its relations with Venezuela, although there has been disagreement over the extent and significance of Iran's relations with the region. In the 112th Congress, several initiatives have been introduced related to terrorism issues in the Western Hemisphere regarding Mexico, Venezuela, and the activities of Iran and Hezbollah, and several oversight hearings have been held.

The Andean Trade Preference Act (ATPA) extends special duty treatment to certain U.S. imports from Bolivia, Colombia, Ecuador, and Peru that meet domestic content and other requirements. The purpose of ATPA is to promote economic growth in the Andean region and to encourage a shift away from dependence on illegal drugs by supporting legitimate economic activities. This report outlines the various aspects of the ATPA, including significant dates and modifications.