Political activist Oscar Lopez Rivera participates in the annual Puerto Rican Day Parade on 5th Ave. on June 11, 2017 in New York City. Tensions were heightened at this year's parade due to the participation of Oscar Lopez Rivera, a former Armed Forces of National Liberation member who served 35 years in prison for seditious conspiracy. The FALN, a Puerto Rican nationalist group, was responsible for a string of bombings in the 1970s and 1980s. (Photo by Stephanie Keith/Getty Images)
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