In the 1993-94 season, Quiñones conducted a hidden-camera investigation into the quality and safety of the nation's seafood supply; interviewed Bennie Agrelo, a courageous Florida teenager who rejected the pain of a third liver transplant so he could die with dignity; and went underwater off the coast of Bimini to profile a marine biologist dedicated to saving the sharks. He reported on the amateur photographer who shot video of the violent aftermath of the Rodney King verdict; reported on the endangered, ancient Penan Indian tribe in the Malaysian state of Sarawak; reported on charges that Catholic nuns in Canada tortured thousands of orphans in the 1940s, destroying their lives; used hidden cameras in Peru to report on the corrupt baby adoption trade; and investigated charges that the U.S. Navy condoned prostitution in the Philippines for 40 years, which resulted in 9,000 Amerasian children abandoned by their American fathers.
During the 1991-92 season, Quiñones contributed several award-winning and breaking news reports, which included an undercover investigation of the meat-packing industry, exposing how contaminated meat is being distributed to the American public. The report promoted an investigation by the USDA. A report on the exploitation of Haitian boys who work for substandard wages in the Dominican Republic sugarcane fields was honored with the Overseas Press Club Award, a Robert F. Kennedy Journalism Award and an Emmy Award. Quiñones smuggled hidden cameras into Tibet, winning an Emmy Award for his examination of how 40 years of Chinese domination has kept the land known as "Shangri-La" in a state of poverty and oppression.
Other reports included an investigation into the cause of an epidemic of brain defects in newborns in Brownsville, Texas; an examination of the problems of homeless veterans; a report from India where he exposed how the poor are selling their kidneys for organ transplants; and a look at how dolphins interact with handicapped children at a research center in Florida.
During the 1990-91 season, Quiñones contributed a number of reports to PrimeTime Live, including a report on a society of abandoned children who live in sewage tunnels beneath the streets of Bogota, Colombia; a look at the Yanomamo Indians of Venezuela, whose primitive existence is being threatened by encroaching civilization; and a report on the plight of Guatemala's 5,000 homeless children who, human activists claim, are being beaten and killed by the Guatemalan police force.
Quiñones has won six national Emmy awards for his PrimeTime Live, Burning Questions and 20/20 work. Most recently, he was awarded an Emmy for his coverage of Congo's virgin rainforest. This piece also won the Ark Trust Wildlife Award.
Quiñones has also been honored with a Gabriel Award, a World Hunger Media Award and a Citation from the Robert F. Kennedy Journalism Awards for To Save the Children, his 1990 report on the homeless children of Bogota. He received a 1990 Emmy Award for Window in the Past, his look at the Yanomamo Indians.
Quiñones joined ABCNEWS in June 1982 as a general assignment correspondent based in Miami, providing reports for World News Tonight With Peter Jennings and other ABCNEWS broadcasts. He was one of the few American journalists reporting from Panama City during the U.S. invasion in December 1989.