The Indigenous peoples of the Spanish-speaking Caribbean are not extinct and they never were. “Todavía estamos aquí (we are still here)”: this is the powerful message of the modern Taíno movement and the foundation of “Taíno: Native Heritage and Identity in the Caribbean,” a new exhibition presented by the Smithsonian’s National Museum of the American Indian and the Smithsonian Latino Center. It opens Saturday, July 28, at the museum’s George Gustav Heye Center in New York.