by Arjun Walia, The Pulse:

Between 1977 and 1978, the Brazilian Air Force conducted an investigation into the UFO phenomenon after citizens in the city of Colares were reporting multiple sightings, with many being at close range.

It was called “Operação Prato,” or “Operation Saucer.” Since then, the government of Brazil has actually admitted to having an Unidentified Aerial Object Investigation system called “SIOANI” which was created in 1969 to investigate the phenomenon. It’s safe to say that they were well aware of the phenomenon before Operação Prato.