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Fuerzas Armadas de Liberación Nacional Puertorriqueña (FALN) Attacks
The Puerto Rican nationalist group which advocated for the island's independence was responsible for at least 120 bombings in the U.S. in between 1974 and 1983, which killed 6 American and injured dozens. One of the most significant bombings was one that went off at the historic Fraunces Tavern in NY, killing 4.
The actions were highly controversial within the Puerto Rican independence movement itself, with many within the movement rejecting the violent action as "strategically misguided and politically dangerous." The group found even less popular support in Puerto Rico.
A source told the Christian Science Monitor that "'not only does the FALN not have support in Puerto Rico; it has been widely condemned (there)," adding that "the FALN's terrorist activities tend to give many Americans the wrong impression of Puerto Ricans in general."