"Since the September 2001 terrorist attacks on New York and Washington, U.S. attention to terrorism in Latin America has intensified, with an increase in bilateral and regional cooperation. In its 2009 Country Reports on Terrorism (issued in August 2010), the State Department maintained that terrorism in the region was primarily perpetrated by terrorist organizations in Colombia and by the remnants of radical leftist Andean groups. Overall, however, the report maintained that the threat of a transnational terrorist attack remained low for most countries in the hemisphere. Cuba has remained on the State Department's list of state sponsors of terrorism since 1982 pursuant to Section 6(j) of the Export Administration Act, which triggers a number of economic sanctions. Both Cuba and Venezuela are on the State Department's annual list of countries determined to be not cooperating fully with U.S. antiterrorism efforts pursuant to Section 40A of the Arms Export Control Act. U.S. officials have expressed concerns over the past several years about Venezuela's lack of cooperation on antiterrorism efforts, its relations with Iran, and President Hugo Chávez's sympathetic statements for Colombian terrorist groups. In recent years, U.S. concerns have increased over activities of the radical Lebanon-based Islamic group Hezbollah and the Sunni Muslim Palestinian group Hamas in the tri-border area of Argentina, Brazil, and Paraguay."
CRS Report for Congress, RS21049
United States. Department of State, Foreign Press Centers, Bureau of Public Affairs: http://www.fpc.state.gov/